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Sep. 09, 1954 - First official picture of Britain's” Flying Bedstead”. Britain's latest flying machine” The Flying Bedstead” news of which was given by the Minister of Supply, Mr Duncan Sandys on the eve of the Farnborough Air Show is seen her in the air during a test flight. It has no wings or rotors and can take off vertically from a horizontal position, it is powered by two Rolls-Royce” None” engines set horizontally in opposition, one on either side of the framework. The jets from these engines are ducted through 90 degrees so that both engines discharge vertically downwards under the centre of gravity. The pilot sits on a platform above the two engines. The pilot sits on a platform aboce the two engines. The control movements which he needs to balance the machine are supplied by compressed air jets which are discharged through nozzles at the ends of cross arms which can be seen clearly in this picture

Sep. 09, 1954 - First official picture of Britain's” Flying Bedstead”. Britain's latest flying machine” The Flying Bedstead” news of which was given by the Minister of Supply, Mr Duncan Sandys on the eve of the Farnborough Air Show is seen her in the air during a test flight. It has no wings or rotors and can take off vertically from a horizontal position, it is powered by two Rolls-Royce” None” engines set horizontally in opposition, one on either side of the framework. The jets from these engines are ducted through 90 degrees so that both engines discharge vertically downwards under the centre of gravity. The pilot sits on a platform above the two engines. The pilot sits on a platform aboce the two engines. The control movements which he needs to balance the machine are supplied by compressed air jets which are discharged through nozzles at the ends of cross arms which can be seen clearly in this picture

ZUM4941651

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

PIX4599366

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

PIX4599375

Solar Orbiter - Solar Orbiter is a solar observation satellite of the European Space Agency (ESA) developed with the participation of NASA, which is scheduled to launch in February 2019 and begin observations around 2022. The main objective of this scientific mission is to study the processes behind the solar wind, the heliospheric magnetic field, the energetic solar particles and the magnetic field of the Sun. Artist impression of Solar Orbiter in front of the Sun (not to scale). Following its launch in February 2019 and three-year journey using gravity swingbys at Earth and Venus, Solar Orbiter will operate from an elliptical orbit around the Sun. At its closest it will approach our star within 42 million kilometers, closer than planet Mercury. Solar Orbiter's over-arching mission goals are to examine how the Sun creates and controls the heliosphere, the extended atmosphere of the Sun in which we reside, and the effects of solar activity on it. Solar Orbiter is an ESA-led mission wit

Solar Orbiter - Solar Orbiter is a solar observation satellite of the European Space Agency (ESA) developed with the participation of NASA, which is scheduled to launch in February 2019 and begin observations around 2022. The main objective of this scientific mission is to study the processes behind the solar wind, the heliospheric magnetic field, the energetic solar particles and the magnetic field of the Sun. Artist impression of Solar Orbiter in front of the Sun (not to scale). Following its launch in February 2019 and three-year journey using gravity swingbys at Earth and Venus, Solar Orbiter will operate from an elliptical orbit around the Sun. At its closest it will approach our star within 42 million kilometers, closer than planet Mercury. Solar Orbiter's over-arching mission goals are to examine how the Sun creates and controls the heliosphere, the extended atmosphere of the Sun in which we reside, and the effects of solar activity on it. Solar Orbiter is an ESA-led mission wit

PIX4643802

Cluster of stars NGC 299 in Toucan - Open cluster NGC 299 in Tucana: NGC 299 is an open cluster located in the galaxy of the Little Magellan Cloud. Image obtained by the Hubble Space Telescope (HST). NGC 299 is an open star cluster located within the Small Magellanic Cloud just under 200 000 light-years away. Open clusters such as this are collections of stars weakly bound by the shackles of gravity, all of which formed from the same massive molecular cloud of gas and dust. Because of this, all the stars have the same age and composition, but vary in their mass because they formed at different positions within the cloud. This unique property not only ensures a spectacular sight when viewed through a sophisticated instrument attached to a telescope such as Hubble's Advanced Camera for Surveys, but gives astronomers a cosmic laboratory in which to study the formation and evolution of stars - a process that is thought to depend strongly on a star's mass

Cluster of stars NGC 299 in Toucan - Open cluster NGC 299 in Tucana: NGC 299 is an open cluster located in the galaxy of the Little Magellan Cloud. Image obtained by the Hubble Space Telescope (HST). NGC 299 is an open star cluster located within the Small Magellanic Cloud just under 200 000 light-years away. Open clusters such as this are collections of stars weakly bound by the shackles of gravity, all of which formed from the same massive molecular cloud of gas and dust. Because of this, all the stars have the same age and composition, but vary in their mass because they formed at different positions within the cloud. This unique property not only ensures a spectacular sight when viewed through a sophisticated instrument attached to a telescope such as Hubble's Advanced Camera for Surveys, but gives astronomers a cosmic laboratory in which to study the formation and evolution of stars - a process that is thought to depend strongly on a star's mass

PIX4580152

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

PIX4599393

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Andrew Feustel transports the new WFC3 (Wide Field Camera 3) camera during his first extravehicular exit to install it aboard the Hubble space telescope (HST). 14 May 2009. But for the absence of gravity, astronaut Andrew Feustel, perched on the end of the remote manipulator system arm, would be a bit top heavy as he helps to install the Wide Field Camera 3 (WFC3) during a May 14 spacewalk to perform work on the Hubble Space Telescope. Out of frame is veteran astronaut John Grunsfeld, his spacewalking crewmate. The pair kicked off five back to back days of extravehicular activity for the STS - 125 crew. Feustel and Grunsfeld will participate in two of the remaining four spacewalks. 14 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Andrew Feustel transports the new WFC3 (Wide Field Camera 3) camera during his first extravehicular exit to install it aboard the Hubble space telescope (HST). 14 May 2009. But for the absence of gravity, astronaut Andrew Feustel, perched on the end of the remote manipulator system arm, would be a bit top heavy as he helps to install the Wide Field Camera 3 (WFC3) during a May 14 spacewalk to perform work on the Hubble Space Telescope. Out of frame is veteran astronaut John Grunsfeld, his spacewalking crewmate. The pair kicked off five back to back days of extravehicular activity for the STS - 125 crew. Feustel and Grunsfeld will participate in two of the remaining four spacewalks. 14 May 2009

PIX4645327

Enticing, 2004 (graphite, resin & oil on coated paper)

Enticing, 2004 (graphite, resin & oil on coated paper)

Cook, Christopher (b.1959)

CVL500333

Size comparison: Earth and Saturn - Saturn and the Earth compared - Saturn, the second largest planet in the solar system compared to Earth. Saturn's diameter is about nine times greater than the Earth's. If you weigh 180 pounds on Earth, you would weigh only 165 pounds at Saturn's cloud tops (despite Saturn's enormous mass, its density is so low that if you were able to stand atop Saturn's clouds, you would feel a pull of gravity slightly less than what you feel on the Earth's surface). Saturn is ten times further from the Sun than the Earth. Saturn has the honor of being the second-largest planet in the Solar System, though it has only 30% the mass of its jovian better Jupiter. Like Jupiter, Saturn is blanketed by thick clouds and is believed to have no solid surface except for a relatively small, Earth-size core of rock and metals

Size comparison: Earth and Saturn - Saturn and the Earth compared - Saturn, the second largest planet in the solar system compared to Earth. Saturn's diameter is about nine times greater than the Earth's. If you weigh 180 pounds on Earth, you would weigh only 165 pounds at Saturn's cloud tops (despite Saturn's enormous mass, its density is so low that if you were able to stand atop Saturn's clouds, you would feel a pull of gravity slightly less than what you feel on the Earth's surface). Saturn is ten times further from the Sun than the Earth. Saturn has the honor of being the second-largest planet in the Solar System, though it has only 30% the mass of its jovian better Jupiter. Like Jupiter, Saturn is blanketed by thick clouds and is believed to have no solid surface except for a relatively small, Earth-size core of rock and metals

Walter B Myers

PIX4629905

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

PIX4599368

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

Gemini 4: release of Ed.White - Gemini 4: Ed White EVA - First release of an American into space made by Edward White on June 3, 1965. On June 3, 1965 Edward H. White II became the first American to step outside his spacecraft and let go, effectively setting himself adrift in the zero gravity of space. For 23 minutes White floated and maneuvered himself around the Gemini spacecraft while logging 6500 miles during his orbital walk. White was attached to the spacecraft by a 25 foot umbilical line and a 23 - ft. tether line, both wrapped in gold tape to form one cord. In his right hand White carries a Hand Held Self Maneuvering Unit (HHSMU) which is used to move about the weightless environment of space. The visor of his helmet is gold plated to protect him from the unfiltered rays of the sun

PIX4599399

Black Holes in 3C75 - Black Holes in 3C75 - Composite X-ray image (blue) and radio (pink) of the active galaxy 3C 75. At the center of this very hot gas mass, two supermassive black holes separated by 25,000 years - light form a binary system of black holes (the two bright points). This composite X - ray/radio image of Abell 400 shows radio jets (pink), immersed in a vast cloud of multimillion degree X - ray emitting gas (blue) that pervades the cluster. The jets emanate from the vicinity of two supermassive black holes (bright spots in the image) in the galaxy. Chandra and radio data confirm that the unusual structure is due to the merger of two large galaxies, whose supermassive black holes are bound together by their mutual gravity. The swept - back appearance of the radio jets is produced by the rapid motion of the galaxy through the hot gas of the cluster, in much the same way that a motorcyclist's scarf is swept back while speeding down the road

Black Holes in 3C75 - Black Holes in 3C75 - Composite X-ray image (blue) and radio (pink) of the active galaxy 3C 75. At the center of this very hot gas mass, two supermassive black holes separated by 25,000 years - light form a binary system of black holes (the two bright points). This composite X - ray/radio image of Abell 400 shows radio jets (pink), immersed in a vast cloud of multimillion degree X - ray emitting gas (blue) that pervades the cluster. The jets emanate from the vicinity of two supermassive black holes (bright spots in the image) in the galaxy. Chandra and radio data confirm that the unusual structure is due to the merger of two large galaxies, whose supermassive black holes are bound together by their mutual gravity. The swept - back appearance of the radio jets is produced by the rapid motion of the galaxy through the hot gas of the cluster, in much the same way that a motorcyclist's scarf is swept back while speeding down the road

PIX4613531

The New Horizons probe - The New Horizons spacecraft - The New Horizons probe at Nasa's Kennedy Space Center in September 2005. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. At NASA Kennedy Space Center's Payload Hazardous Servicing Facility, technicians from the Applied Physics Laboratory work on the New Horizons spacecraft. They have been installing side panels on the spacecraft. A series of interconnecting panels will enclose the spacecraft beneath the antenna to maintain safe operating temperatures in space. New Horizons will make the first recognition of Pluto and Charon - a “double planet”” and the last planet in our solar system to be visited by spacecraft. The mission will then visit one or more objects in the Kuiper Belt region beyond Neptune. New Horizons is scheduled to launch in January 2006, swing past Jupiter for a gravity boost and scientific studies in February or March 20

The New Horizons probe - The New Horizons spacecraft - The New Horizons probe at Nasa's Kennedy Space Center in September 2005. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. At NASA Kennedy Space Center's Payload Hazardous Servicing Facility, technicians from the Applied Physics Laboratory work on the New Horizons spacecraft. They have been installing side panels on the spacecraft. A series of interconnecting panels will enclose the spacecraft beneath the antenna to maintain safe operating temperatures in space. New Horizons will make the first recognition of Pluto and Charon - a “double planet”” and the last planet in our solar system to be visited by spacecraft. The mission will then visit one or more objects in the Kuiper Belt region beyond Neptune. New Horizons is scheduled to launch in January 2006, swing past Jupiter for a gravity boost and scientific studies in February or March 20

PIX4607326

Star Antares in the Scorpion - The nebula around Antares - Supergeant star Antares seen at the 3.9m telescope of Siding Spring. To his right is the globular cluster NGC 6144. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid particles begin to appear, made of the heavier trace elements formed with in the star. Th

Star Antares in the Scorpion - The nebula around Antares - Supergeant star Antares seen at the 3.9m telescope of Siding Spring. To his right is the globular cluster NGC 6144. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid particles begin to appear, made of the heavier trace elements formed with in the star. Th

PIX4571707

Feb. 11, 1954 - Suspended Girton Girl Students Arrive In London. The Indian girl students from Girton College, who were “rusticated” for four days were worried yesterday - about what their relatives in India will say. Anita Chakravarty said as she caught a train for London” We don't want our people in India to hear about this. a suspension of this kind is viewed with greater gravity in India”. Miss Chakravarty and Miss Ranjana Ray were with four other students when two men undergraduates knocked on the window of a ground-floor room in the women's college after midnight. The girls let them in, though men are not allowed in the college after 10 p.m. A tutor heard men's voices and investigated. the girls were suspended. (“Rusticating” means that a student must not approach within 25 miles of Great St. Mary's Church in the centre of Cambridge). Keystone Photo Shows: - Ranjana Ray (Left), and Anita Chakravarty, seen on their arrival in London yesterday. they will stay at the Y.W.C.A until t

Feb. 11, 1954 - Suspended Girton Girl Students Arrive In London. The Indian girl students from Girton College, who were “rusticated” for four days were worried yesterday - about what their relatives in India will say. Anita Chakravarty said as she caught a train for London” We don't want our people in India to hear about this. a suspension of this kind is viewed with greater gravity in India”. Miss Chakravarty and Miss Ranjana Ray were with four other students when two men undergraduates knocked on the window of a ground-floor room in the women's college after midnight. The girls let them in, though men are not allowed in the college after 10 p.m. A tutor heard men's voices and investigated. the girls were suspended. (“Rusticating” means that a student must not approach within 25 miles of Great St. Mary's Church in the centre of Cambridge). Keystone Photo Shows: - Ranjana Ray (Left), and Anita Chakravarty, seen on their arrival in London yesterday. they will stay at the Y.W.C.A until t

ZUM4915198

Galaxy clusters Abell 2744 - This image of the galaxy cluster Abell 2744 located in the constellation of the Sculptor, reveals several hundred galaxies within this cluster, aged 3.5 billion years. By a gravitational lens effect, nearly 3000 galaxies are also visible. Composite of visible and near-infrared images obtained by the Hubble Space Telescope (HST). Abell 2744, located in the constellation Sculptor, appears in the foreground of this image. It contains several hundred galaxies as they looked 3.5 billion years ago. The immense gravity in Abell 2744 acts as a gravitational lens to warp space and brighten and magnify images of nearly 3,000 distant background galaxies. The more distant galaxies appear as they did longer than 12 billion years ago, not long after the big bangs. This image is part of an unprecedented long - distance view of the universe from an ambitious collaborative project among the NASA Great Observatories called The Frontier Fields. Over the next several years sel

Galaxy clusters Abell 2744 - This image of the galaxy cluster Abell 2744 located in the constellation of the Sculptor, reveals several hundred galaxies within this cluster, aged 3.5 billion years. By a gravitational lens effect, nearly 3000 galaxies are also visible. Composite of visible and near-infrared images obtained by the Hubble Space Telescope (HST). Abell 2744, located in the constellation Sculptor, appears in the foreground of this image. It contains several hundred galaxies as they looked 3.5 billion years ago. The immense gravity in Abell 2744 acts as a gravitational lens to warp space and brighten and magnify images of nearly 3,000 distant background galaxies. The more distant galaxies appear as they did longer than 12 billion years ago, not long after the big bangs. This image is part of an unprecedented long - distance view of the universe from an ambitious collaborative project among the NASA Great Observatories called The Frontier Fields. Over the next several years sel

PIX4565741

Ring of black matter in the cluster of galaxies Cl 0024+17 - Dark matter ring in distant galaxy cluster - The cluster of galaxies Cl 0024+17 is located about 5 billion years - light in the constellation Pisces. By studying visible gravitational mirages, astronomers were able to demonstrate a ring of black matter around this cluster. On this image, the ring of black material (in blue) was digitally superimposed on the image obtained by the Hubble space telescope in November 2004 with the ACS camera. Discovery of a ring of dark matter in the cluster ZWCL0024+1652. The ring's discovery is among the strongest evidence yet that dark matter exists.The ring, which measures 2.6 million light - years across, was found in the cluster ZWCL0024+1652, located 5 billion light - years away from Earth. The astronomers team found the ring unexpectedly while they were mapping the distribution of dark matter within the cluster. Although astronomers cannot see dark matter, they can infer its existence in

Ring of black matter in the cluster of galaxies Cl 0024+17 - Dark matter ring in distant galaxy cluster - The cluster of galaxies Cl 0024+17 is located about 5 billion years - light in the constellation Pisces. By studying visible gravitational mirages, astronomers were able to demonstrate a ring of black matter around this cluster. On this image, the ring of black material (in blue) was digitally superimposed on the image obtained by the Hubble space telescope in November 2004 with the ACS camera. Discovery of a ring of dark matter in the cluster ZWCL0024+1652. The ring's discovery is among the strongest evidence yet that dark matter exists.The ring, which measures 2.6 million light - years across, was found in the cluster ZWCL0024+1652, located 5 billion light - years away from Earth. The astronomers team found the ring unexpectedly while they were mapping the distribution of dark matter within the cluster. Although astronomers cannot see dark matter, they can infer its existence in

PIX4565677

Star Formation in the dwarf galaxy NGC 1569 - Starburst galaxy NGC 1569 - NGC 1569 is a dwarf irregular galaxy in the constellation Giraffe. The Hubble space telescope measured its distance with precision, placing it 11 million years - light from Earth, or 4 million years - light beyond the distance previously established by astronomers. This new measure explains better why this galaxy has a particularly high star formation rate. It resides among a group of galaxies that by gravity compresses its gas, thus creating a hundred times more stars than in our own galaxy. NGC 1569 is located in the middle of a group of about 10 galaxies centered on the spiral galaxy IC 342. Gravitational interactions among the group's galaxies may be compressing gas in NGC 1569 and igniting the star - birthing frenzy. The galaxy is forming stars at a rate more than 100 times higher than the rate in the Milky Way. This high star - formation rate has been almost continuous for the past 100 million years. Thanks

Star Formation in the dwarf galaxy NGC 1569 - Starburst galaxy NGC 1569 - NGC 1569 is a dwarf irregular galaxy in the constellation Giraffe. The Hubble space telescope measured its distance with precision, placing it 11 million years - light from Earth, or 4 million years - light beyond the distance previously established by astronomers. This new measure explains better why this galaxy has a particularly high star formation rate. It resides among a group of galaxies that by gravity compresses its gas, thus creating a hundred times more stars than in our own galaxy. NGC 1569 is located in the middle of a group of about 10 galaxies centered on the spiral galaxy IC 342. Gravitational interactions among the group's galaxies may be compressing gas in NGC 1569 and igniting the star - birthing frenzy. The galaxy is forming stars at a rate more than 100 times higher than the rate in the Milky Way. This high star - formation rate has been almost continuous for the past 100 million years. Thanks

PIX4609940

Antares star and globular clusters in the Scorpion - The nebula around Antares and globular clusters - Supergeante star Antares seen at the 3.9m telescope from Siding Spring. At the top right is the globular cluster NGC 6144, at the extreme right, cluster M4. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid part

Antares star and globular clusters in the Scorpion - The nebula around Antares and globular clusters - Supergeante star Antares seen at the 3.9m telescope from Siding Spring. At the top right is the globular cluster NGC 6144, at the extreme right, cluster M4. Antares is a giant among stars, and like giants in general, very rare. Antares has spent most of its short life as a highly luminous blue supergiant star, its mass obliging it to consume its vast store of nuclear fuel (hydrogen) very rapidly. This nuclear fusion process supplied the energy that prevented the star collapsing in on itself - - all stars support themselves against gravity in this way. Now, the supply of fuel in the core of the star is close to exhaustion and the star has undergone a major internal re - arrangement to cope with the changed circumstances, both cooling and swelling in the process. This star is big; the earth would be inside it if it were to replace the sun. At its cool, distended surface, tiny solid part

PIX4571773

Saturn rings seen in ultraviolet by Cassini - Saturn's rings in utraviolet - Saturn rings seen in ultraviolet by the Cassini probe. The colours indicate a different distribution of the material within the rings. This false - color image of Saturn's main rings was made by combining data from multiple star occultations using the Cassini ultraviolet imaging spectrograph. During occultations, scientists observe the brightness of a star as the rings pass in front of the star. This provides a measurement of the amount of ring material between the spacecraft and the star. Cassini has given scientists the most detailed view yet of Saturn's densely packed B ring. Cassini found that this part of the rings is densely packed with clumps, called self - gravity wakes, separated by almost empty gaps. These clumps in Saturn's B ring are neatly organized and constantly colliding, which surprised scientists. The clumps in Saturn's B ring, 30 to 50 meters (100 to 160 feet) across, are too small to be see

Saturn rings seen in ultraviolet by Cassini - Saturn's rings in utraviolet - Saturn rings seen in ultraviolet by the Cassini probe. The colours indicate a different distribution of the material within the rings. This false - color image of Saturn's main rings was made by combining data from multiple star occultations using the Cassini ultraviolet imaging spectrograph. During occultations, scientists observe the brightness of a star as the rings pass in front of the star. This provides a measurement of the amount of ring material between the spacecraft and the star. Cassini has given scientists the most detailed view yet of Saturn's densely packed B ring. Cassini found that this part of the rings is densely packed with clumps, called self - gravity wakes, separated by almost empty gaps. These clumps in Saturn's B ring are neatly organized and constantly colliding, which surprised scientists. The clumps in Saturn's B ring, 30 to 50 meters (100 to 160 feet) across, are too small to be see

PIX4625061

Barree spiral galaxy NGC 1483 in Dorado - Barred spiral galaxy NGC 1483 in Dorado - NGC 1483 is a barree spiral galaxy located about 60 million years ago - light in the southern constellation of Dorado. Image obtained by the Hubble Space Telescope (HST). NGC 1483 is a barred spiral galaxy located in the southern constellation of Dorado. The nebulous galaxy features a bright central bulge and diffuse arms with distinct star - forming regions. In the background, many other distant galaxies can be seen. The constellation Dorado is home to the Dorado Group of galaxies, a loose group comprising an estimated 70 galaxies and located some 62 million light - years away. The Dorado group is much larger than the Local Group that includes the Milky Way (and which contains around 30 galaxies) and approaches the size of a galaxy cluster. Galaxy clusters are the largest groupings of galaxies (and indeed the largest structures of any type) in the Universe to be held together by their gravity. Barred s

Barree spiral galaxy NGC 1483 in Dorado - Barred spiral galaxy NGC 1483 in Dorado - NGC 1483 is a barree spiral galaxy located about 60 million years ago - light in the southern constellation of Dorado. Image obtained by the Hubble Space Telescope (HST). NGC 1483 is a barred spiral galaxy located in the southern constellation of Dorado. The nebulous galaxy features a bright central bulge and diffuse arms with distinct star - forming regions. In the background, many other distant galaxies can be seen. The constellation Dorado is home to the Dorado Group of galaxies, a loose group comprising an estimated 70 galaxies and located some 62 million light - years away. The Dorado group is much larger than the Local Group that includes the Milky Way (and which contains around 30 galaxies) and approaches the size of a galaxy cluster. Galaxy clusters are the largest groupings of galaxies (and indeed the largest structures of any type) in the Universe to be held together by their gravity. Barred s

PIX4609879

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

UIG5425863

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

UIG5425866

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

UIG5425853

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew Exploration Vehicle) type Orion prepares to moor to the inflatable module. A manned Crew Exploration Vehicle (CEV) prepares to dock with a spacious inflatable habitat attached to the International Space Station (ISS) at an altitude of 250 nautical miles. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the othe

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew Exploration Vehicle) type Orion prepares to moor to the inflatable module. A manned Crew Exploration Vehicle (CEV) prepares to dock with a spacious inflatable habitat attached to the International Space Station (ISS) at an altitude of 250 nautical miles. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the othe

Walter B Myers

PIX4641303

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426001

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

Engraving depicting various applications of the inclined plane. Dated 19th Century ©UIG/Leemage

UIG5425865

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426049

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426005

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426012

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426024

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew exploration vehicle) type Orion is moored to the inflatable module. A spacious inflatable habitat is attached to the International Space Station (ISS) with a manned Crew Exploration Vehicle (CEV) docked on one end. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the other end of the habitat features an Interna

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew exploration vehicle) type Orion is moored to the inflatable module. A spacious inflatable habitat is attached to the International Space Station (ISS) with a manned Crew Exploration Vehicle (CEV) docked on one end. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the other end of the habitat features an Interna

Walter B Myers

PIX4641302

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew Exploration Vehicle) type Orion prepares to moor to the inflatable module. A manned Crew Exploration Vehicle (CEV) prepares to dock with a spacious inflatable habitat attached to the International Space Station (ISS) at an altitude of 250 nautical miles. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the othe

ISS and inflatable module - Large habitat and ISS: Artist's view of a large inflatable module (much larger than all existing modules) installed on the International Space Station (ISS). A live module or CEV (Crew Exploration Vehicle) type Orion prepares to moor to the inflatable module. A manned Crew Exploration Vehicle (CEV) prepares to dock with a spacious inflatable habitat attached to the International Space Station (ISS) at an altitude of 250 nautical miles. This inflatable habitat, much larger than any existing ISS module, is a combination of layers of flexible material capped by sturdy docking hardware at either end. The inflatable portion is collapsed and sandwiched between the docking hardware portions for launch from earth and then inflated and pressurized with a breathable atmosphere once in orbit. The habitat features a pair of 42 x 24 inch windows to the outside. The habitat is attached to a pressurized module of the ISS via a Common Berthing Mechanism (CBM) while the othe

Walter B Myers

PIX4641310

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Adam Block

PIX4620555

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

PIX4571724

Engraving depicting a circus performer balancing atop a podium. Dated 19th Century

Engraving depicting a circus performer balancing atop a podium. Dated 19th Century

UIG5426030

Engraving depicting a circus performer balancing atop a podium. Dated 19th Century

Engraving depicting a circus performer balancing atop a podium. Dated 19th Century

UIG5426027

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426053

Engraving depicting various applications of the inclined plane. Dated 19th Century

Engraving depicting various applications of the inclined plane. Dated 19th Century

UIG5426037

Engraving demonstrating fulcrum by a see-saw. Dated 19th Century

Engraving demonstrating fulcrum by a see-saw. Dated 19th Century

UIG5426038

Persee Galaxy Cluster - Perseus galaxy cluster - The Persee galaxy cluster (Abell 426) contains at least 500 galaxies including the large elliptical galaxy NGC 1275. This galaxy (the galaxy with pink filaments to the left of the image) is located about 235 million years ago - light; it is a very strong source of radio wave transmission known as Perseus A. In the right center of the image, note the presence of a supernova, SN 2008fg, in a small blue spiral galaxy, NGC 1268. Perseus galaxy cluster (Abell 426) is a cluster of about 500 galaxies. The biggest (left) is NGC 1275, located 235 million light years away; it is a strong radio source known as Perseus A. The gravity exerted by the luminous parts of a galaxy cluster is insufficient to hold the cluster together. Thus, scientists have concluded the missing adhesive must be dark matter and since it's invisible to modern instruments - it can only be inferred. So, when one views the image of the Perseus Galaxy Cluster, ones sees only a s

Persee Galaxy Cluster - Perseus galaxy cluster - The Persee galaxy cluster (Abell 426) contains at least 500 galaxies including the large elliptical galaxy NGC 1275. This galaxy (the galaxy with pink filaments to the left of the image) is located about 235 million years ago - light; it is a very strong source of radio wave transmission known as Perseus A. In the right center of the image, note the presence of a supernova, SN 2008fg, in a small blue spiral galaxy, NGC 1268. Perseus galaxy cluster (Abell 426) is a cluster of about 500 galaxies. The biggest (left) is NGC 1275, located 235 million light years away; it is a strong radio source known as Perseus A. The gravity exerted by the luminous parts of a galaxy cluster is insufficient to hold the cluster together. Thus, scientists have concluded the missing adhesive must be dark matter and since it's invisible to modern instruments - it can only be inferred. So, when one views the image of the Perseus Galaxy Cluster, ones sees only a s

R. Jay GaBany

PIX4565332

Galaxy Clusters Abell 1689 - details - Gravitational lenses in Abell 1689 galaxy cluster - Close-up of the various gravitational mirages observed in the Abell 1689 galaxy cluster. Near infrared and visible image obtained by the Hubble space telescope in June 2002. 13 hours of installation. A selection of cropped images from a NASA Hubble Space Telescope Advanced Camera for Surveys view of one of the most massive galaxy clusters known, called Abell 1689. These close - ups show “” lensed”” images of background galaxies that have been brightened and smeared by the gravitational bending of light by the foreground cluster. The yellow - white objects are the cluster galaxies located 2.2 billion light - years away. The blue arcs are the distorted images of background galaxies located billions of light - years farther away than Abell 1689. The distribution of both “” normal”” and dark matter, and the alignment of the background galaxies determine the amount of distortion. In a perfectly aligne

Galaxy Clusters Abell 1689 - details - Gravitational lenses in Abell 1689 galaxy cluster - Close-up of the various gravitational mirages observed in the Abell 1689 galaxy cluster. Near infrared and visible image obtained by the Hubble space telescope in June 2002. 13 hours of installation. A selection of cropped images from a NASA Hubble Space Telescope Advanced Camera for Surveys view of one of the most massive galaxy clusters known, called Abell 1689. These close - ups show “” lensed”” images of background galaxies that have been brightened and smeared by the gravitational bending of light by the foreground cluster. The yellow - white objects are the cluster galaxies located 2.2 billion light - years away. The blue arcs are the distorted images of background galaxies located billions of light - years farther away than Abell 1689. The distribution of both “” normal”” and dark matter, and the alignment of the background galaxies determine the amount of distortion. In a perfectly aligne

PIX4565586

Abell 383 galaxy cluster and primitive galaxy - Abell 383 cluster of galaxies with gravitational arcs - Abell 383 is a cluster of galaxies located in the constellation Eridan. This image obtained by the Hubble Space Telescope (HST) in 2011 shows gravitational arcs among galaxies. These mirages are deformed images of farther galaxies located behind the cluster. Thanks to this magnifying effect, the resulting image revealed the presence of a primitive galaxy, nee 200 million years after the big blow. Astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, a mere 200 million years after the Big Bang. The finding addresses questions about when the first galaxies arose, and how the early universe evolved. Nasa's Hubble Space Telescope was the first to spot the newfound galaxy. Detailed observations from the W.M. Keck Observatory on Mauna Kea in Hawaii revealed the observed light dates to when the universe was only 950 m

Abell 383 galaxy cluster and primitive galaxy - Abell 383 cluster of galaxies with gravitational arcs - Abell 383 is a cluster of galaxies located in the constellation Eridan. This image obtained by the Hubble Space Telescope (HST) in 2011 shows gravitational arcs among galaxies. These mirages are deformed images of farther galaxies located behind the cluster. Thanks to this magnifying effect, the resulting image revealed the presence of a primitive galaxy, nee 200 million years after the big blow. Astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, a mere 200 million years after the Big Bang. The finding addresses questions about when the first galaxies arose, and how the early universe evolved. Nasa's Hubble Space Telescope was the first to spot the newfound galaxy. Detailed observations from the W.M. Keck Observatory on Mauna Kea in Hawaii revealed the observed light dates to when the universe was only 950 m

PIX4565712

Engraving depicting a man carrying hares and rabbits on a pole. The man is able to keep the pole level by holding it slightly nearer the right hand end to compensate for the greater weight of the hares. Dated 19th Century

Engraving depicting a man carrying hares and rabbits on a pole. The man is able to keep the pole level by holding it slightly nearer the right hand end to compensate for the greater weight of the hares. Dated 19th Century

UIG5426017

Liquid mirror telescope on the Moon - Lunar liquid mirror telescope - Illustration of an astronomical observatory on the Moon. Installs near the southern pole of the Moon, a giant telescope with liquid mirror, one kilometre in diameter. A giant liquid mirror telescope 1 kilometer wide (6 tenths of a mile) and 1 kilometer tall lies nestled in an approximately 1 kilometer wide crater near the Moon's south pole. In the foreground is a kind of lunar city for human habitation composed of pressurized and radiation-hardened living units. On the upper right are landing pads for transports arriving to and departing from the lunar surface. A liquid mirror telescope is a Newtonian reflecting type telescope that employs a reflecting liquid as the primary mirror. A concept first identified 300 years ago by Isaac Newton himself, the reflecting liquid assumes the proper paraboloidal shape by rotating the container the liquid is in. On Earth working liquid mirror telescopes have been created with diam

Liquid mirror telescope on the Moon - Lunar liquid mirror telescope - Illustration of an astronomical observatory on the Moon. Installs near the southern pole of the Moon, a giant telescope with liquid mirror, one kilometre in diameter. A giant liquid mirror telescope 1 kilometer wide (6 tenths of a mile) and 1 kilometer tall lies nestled in an approximately 1 kilometer wide crater near the Moon's south pole. In the foreground is a kind of lunar city for human habitation composed of pressurized and radiation-hardened living units. On the upper right are landing pads for transports arriving to and departing from the lunar surface. A liquid mirror telescope is a Newtonian reflecting type telescope that employs a reflecting liquid as the primary mirror. A concept first identified 300 years ago by Isaac Newton himself, the reflecting liquid assumes the proper paraboloidal shape by rotating the container the liquid is in. On Earth working liquid mirror telescopes have been created with diam

Walter B Myers

PIX4639385

Abell 2218 galaxy cluster in the Dragon - Gravitational lenses in the galaxy cluster Abell 2218 - The Abell 2218 galaxy cluster is located about 2 billion years ago - light from Earth in the constellation of the Dragon. It is so massive that its gravity curved and amplifies the light from other galaxies located behind it. Thus, these galaxies appear on this cliche obtained by the Hubble space telescope in the form of arcs. Abell 2218 resides in the constellation Draco, some 2 billion light - years from Earth. The cluster is so massive that its enormous gravitational field deflects light rays passing through it, much as an optical lens bends light to form an image. This phenomenon, called gravitational lensing, magnifies, brightens, and distorts images from faraway objects. The cluster's magnifying powers provides a powerful “” zoom lens”” for viewing distant galaxies that could not normally be observed with the largest telescopes. This useful phenomenon has produced the arc - shaped pa

Abell 2218 galaxy cluster in the Dragon - Gravitational lenses in the galaxy cluster Abell 2218 - The Abell 2218 galaxy cluster is located about 2 billion years ago - light from Earth in the constellation of the Dragon. It is so massive that its gravity curved and amplifies the light from other galaxies located behind it. Thus, these galaxies appear on this cliche obtained by the Hubble space telescope in the form of arcs. Abell 2218 resides in the constellation Draco, some 2 billion light - years from Earth. The cluster is so massive that its enormous gravitational field deflects light rays passing through it, much as an optical lens bends light to form an image. This phenomenon, called gravitational lensing, magnifies, brightens, and distorts images from faraway objects. The cluster's magnifying powers provides a powerful “” zoom lens”” for viewing distant galaxies that could not normally be observed with the largest telescopes. This useful phenomenon has produced the arc - shaped pa

PIX4565631

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

PIX4613542

Launch of the New Horizons probe by an Atlas V - New Horizons launch by an Atlas V rocket - Decolving the Atlas 5 rocket carrying the New Horizons probe. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. From lightning masts surrounding the launch pad, Nasa's New Horizons spacecraft roars into the blue sky aboard an Atlas V rocket spewing flames and smoke. Liftoff was on time at 2 p.m. EST from Complex 41 on Cape Canaveral Air Force Station in Florida. This was the third launch attempt in as many days after scrubs due to weather concerns. The compact, 1,050 - pound piano - sized probe will get a boost from a kick - stage solid propellant motor for its journey to Pluto. New Horizons will be the fastest spacecraft ever launched, reaching lunar orbit distance in just nine hours and passing Jupiter 13 months later. The New Horizons science payload, developed under direction of Southwest Resear

Launch of the New Horizons probe by an Atlas V - New Horizons launch by an Atlas V rocket - Decolving the Atlas 5 rocket carrying the New Horizons probe. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. From lightning masts surrounding the launch pad, Nasa's New Horizons spacecraft roars into the blue sky aboard an Atlas V rocket spewing flames and smoke. Liftoff was on time at 2 p.m. EST from Complex 41 on Cape Canaveral Air Force Station in Florida. This was the third launch attempt in as many days after scrubs due to weather concerns. The compact, 1,050 - pound piano - sized probe will get a boost from a kick - stage solid propellant motor for its journey to Pluto. New Horizons will be the fastest spacecraft ever launched, reaching lunar orbit distance in just nine hours and passing Jupiter 13 months later. The New Horizons science payload, developed under direction of Southwest Resear

PIX4604982

Engraving depicting the sorting of lead shots being sifted shot is allowed to roll down an inclined plane. Dated 19th Century ©UIG/Leemage

Engraving depicting the sorting of lead shots being sifted shot is allowed to roll down an inclined plane. Dated 19th Century ©UIG/Leemage

UIG5425859

Spring in clamp pulled by weight-Photo by Andy Crawford

Spring in clamp pulled by weight-Photo by Andy Crawford

UDK5430369

Engraving depicting a pulley-system being used to lift a barrel. Dated 18th Century

Engraving depicting a pulley-system being used to lift a barrel. Dated 18th Century

UIG5426048

Engraving depicting a pulley-system being used to lift a barrel. Dated 18th Century

Engraving depicting a pulley-system being used to lift a barrel. Dated 18th Century

UIG5426044

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

Globular cluster NGC 6401 in Ophiuchus - Globular cluster NGC 6401 in Ophiuchus - The NASA/ESA Hubble Space Telescope has used its powerful optics to separate the globular cluster NGC 6401 into its constituent stars. What was once only visible as a ghostly mist in the eyepieces of astronomical instruments has been transformed into a stunning stellar landscape. NGC 6401 can be found within the constellation of Ophiuchus (The Serpent Bearer). The globular cluster itself is relatively faint, so a telescope and some observational experience are required to see it. Globular clusters are very rich, and generally spherical, collections of stars, hence the name. They orbit the cores of galaxies, with the force of gravity also keeping the stars bound as a group. There are around 160 globular clusters associated with our Milky Way, of which NGC 6401 is one. These objects are very old, containing some of the most ancient stars known. However, there are many mysteries surrounding them, with the or

PIX4564826

Engraving depicting a pulley-system with chains and levers. Dated 18th Century

Engraving depicting a pulley-system with chains and levers. Dated 18th Century

UIG5426034

Planetary nebula M2 - 9 in Ophiuchus/HST - M2 - 9 is a striking example of a “” butterfly”” or a bipolar planetary nebula. Another more revealing name might be the “Twin Jet Nebula.”” If the nebula is sliced across the star, each side of it appears much like a pair of exhausts from jet engines. Indeed, because of the nebula's shape and the measured velocity of the gas, in excess of 200 miles per second, astronomers believe that the description as a super - super - sonic jet exhaust is quite apt. Ground - based studies have shown that the nebula's size increases with time, suggesting that the stellar outburst that formed the lobes occurred just 1,200 years ago. The central star in M2 - 9 is known to be one of a very close pair which orbit one another at perilously close distances. It is even possible that one star is being engulfed by the other. Astronomers suspect the gravity of one star pulls weakly bound gas from the surface of the other and flings it into a thin, dense disk which su

Planetary nebula M2 - 9 in Ophiuchus/HST - M2 - 9 is a striking example of a “” butterfly”” or a bipolar planetary nebula. Another more revealing name might be the “Twin Jet Nebula.”” If the nebula is sliced across the star, each side of it appears much like a pair of exhausts from jet engines. Indeed, because of the nebula's shape and the measured velocity of the gas, in excess of 200 miles per second, astronomers believe that the description as a super - super - sonic jet exhaust is quite apt. Ground - based studies have shown that the nebula's size increases with time, suggesting that the stellar outburst that formed the lobes occurred just 1,200 years ago. The central star in M2 - 9 is known to be one of a very close pair which orbit one another at perilously close distances. It is even possible that one star is being engulfed by the other. Astronomers suspect the gravity of one star pulls weakly bound gas from the surface of the other and flings it into a thin, dense disk which su

PIX4623720

Galaxy cluster Abell 1689 - Gravitational lenses in Abell 1689 galaxy cluster - Galaxy cluster Abell 1689 is about 2.2 billion years ago - light in the constellation of the Virgin. This image shows, by a gravitational mirage effect, the deformed image of many galaxies located behind the cluster. Near infrared and visible image obtained by the Hubble space telescope in June 2002. 13 hours of installation. This representative color image is a composite of visible - light and near - infrared exposures taken in June 2002. Hubble peered straight through the center of one of the most massive galaxy clusters known, called Abell 1689. This required that Hubble gaze at the remote cluster, located 2.2 billion light - years away, for over 13 hours. The gravity of the cluster's trillion stars - - plus dark matter - - acts as a 2 - million - light - year - wide “” lens”” in space. This “” gravitational lens””” bends and magnifies the light of galaxies located far behind it. Although much more analy

Galaxy cluster Abell 1689 - Gravitational lenses in Abell 1689 galaxy cluster - Galaxy cluster Abell 1689 is about 2.2 billion years ago - light in the constellation of the Virgin. This image shows, by a gravitational mirage effect, the deformed image of many galaxies located behind the cluster. Near infrared and visible image obtained by the Hubble space telescope in June 2002. 13 hours of installation. This representative color image is a composite of visible - light and near - infrared exposures taken in June 2002. Hubble peered straight through the center of one of the most massive galaxy clusters known, called Abell 1689. This required that Hubble gaze at the remote cluster, located 2.2 billion light - years away, for over 13 hours. The gravity of the cluster's trillion stars - - plus dark matter - - acts as a 2 - million - light - year - wide “” lens”” in space. This “” gravitational lens””” bends and magnifies the light of galaxies located far behind it. Although much more analy

PIX4565577

Leaf-nosed Bat (Carollia perspicillata) hanging from edge of a rock (photo)

Leaf-nosed Bat (Carollia perspicillata) hanging from edge of a rock (photo)

UDK4998460

Diagram of the method of raising a weight (w), up an inclined plane using a weight whose power is less than the weight to be raised. Dated 18th Century

Diagram of the method of raising a weight (w), up an inclined plane using a weight whose power is less than the weight to be raised. Dated 18th Century

UIG5426050

Engraving titled 'Hydrostatic Paradox'. Pictured is a sectional view of a rock with a large cavity fed by a small stream above. Because of pressure on the sides caused by the hydrostatic paradox, when the cavity is filled the pressure can be enough to break the rock apart. Dated 19th Century

Engraving titled 'Hydrostatic Paradox'. Pictured is a sectional view of a rock with a large cavity fed by a small stream above. Because of pressure on the sides caused by the hydrostatic paradox, when the cavity is filled the pressure can be enough to break the rock apart. Dated 19th Century

UIG5426003

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

UIG5425846

Engraving depicting men using a rope as a lever to help in the felling. Dated 19th Century

Engraving depicting men using a rope as a lever to help in the felling. Dated 19th Century

UIG5426025

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

UIG5425873

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

Engraving depicting a gunner firing ball from a mortar. Path of the projectile is shown as a circular arc, not a parabolic arc. Dated 16th Century ©UIG/Leemage

UIG5425850

Engraving depicting a hydrostatic bellows (Paradoxical Instrument). The men standing on the bellows can be lifted by pouring a small quantity of water down tube at the right. Dated 19th Century

Engraving depicting a hydrostatic bellows (Paradoxical Instrument). The men standing on the bellows can be lifted by pouring a small quantity of water down tube at the right. Dated 19th Century

UIG5425999

Gl 581c: discovery of a habitable planet - Gl 581c: discovery of an habitable planet - Artist's view of the exoplanet Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible extra-terrestrial life. From its surface, its star, about 100 times less bright than our Sun, must be large in the sky because of its proximity to the planet. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super - earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super - earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.”” Gliese 581 c is believed to be about five times more massive than the Earth with a diameter about half - again as large as Earth's. Depending upon the planet's composition, whether mostly rock or a combin

Gl 581c: discovery of a habitable planet - Gl 581c: discovery of an habitable planet - Artist's view of the exoplanet Gliese 581c. Gliese 581c, with a radius of 1.5 times that of the Earth, is the first exoplanet gathering the necessary elements to imagine the existence of a possible extra-terrestrial life. From its surface, its star, about 100 times less bright than our Sun, must be large in the sky because of its proximity to the planet. In April 2007 the Geneva Observatory in Switzerland announced the discovery of a “super - earth”” extrasolar planet orbiting the red dwarf star Gliese 581. Dubbed Gliese 581 c, it's been called a super - earth because it is one of the few known extrasolar planets that has a mass near Earth's, and the only one to occupy its sun's “” habitable zone.”” Gliese 581 c is believed to be about five times more massive than the Earth with a diameter about half - again as large as Earth's. Depending upon the planet's composition, whether mostly rock or a combin

Walter B Myers

PIX4573770

Flying Fox (Pteropus sp.) hanging from a branch, front view (photo)

Flying Fox (Pteropus sp.) hanging from a branch, front view (photo)

UDK4992042

Choloepus didactylus, Two-toed sloth, hanging from branch, order Edentata is called Xenarthra now (photo)

Choloepus didactylus, Two-toed sloth, hanging from branch, order Edentata is called Xenarthra now (photo)

UDK5008187

Two-toed sloth (Choloepus didactylus) hanging from a branch, side view (photo)

Two-toed sloth (Choloepus didactylus) hanging from a branch, side view (photo)

UDK4994405

Two-toed sloth (Choloepus didactylus) moving along a branch, side view (photo)

Two-toed sloth (Choloepus didactylus) moving along a branch, side view (photo)

UDK4992040

Sandra Bullock

DPA2400575

Cambridge, England

Cambridge, England

Doughty, C.L. (1913-85)

LAL295325

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