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36961. Voyager Jupiter Science Summary
... Voyager 1 completed its Jupiter encounter in early April, after taking almost 19,000 pictures and many other scientific measurements. ... Its outer edge is 129,000 kilometers (80,000 miles) from the center of the planet, and, though the brightest portion is only about 6,000 kilometers (4,000 miles) wide, ring material may extend another 50,000 kilometers (30,000 miles) downward to the top of Jupiter's atmosphere. ... Jupiter Space History The Voyager Planetary Mission Voyager Saturn Science Summary ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/vgrjup.htm -- 16.6 Кб -- 15.03.1998
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36962. Voyager Neptune Science Summary
... Neptune . ... Triton . ... Passing about 4,950 kilometers (3,000 miles) above Neptune's north pole, Voyager 2 made its closest approach to any planet since leaving Earth 12 years earlier. Five hours later, Voyager 2 passed about 40,000 kilometers (25,000 miles) from Neptune's largest moon, Triton , the last solid body the spacecraft will have an opportunity to study. ... An Inside Diffuse Ring (1989N3R) -- a complete ring located about 17,100 kilometers (10,600 miles) from Neptune's cloud tops. ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/vgrnep.htm -- 29.2 Кб -- 15.03.1998
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36963. Lunar Orbiter 3
Lunar Orbiter 3 . ... Launch Date: 1967-02-05 . ... The Lunar Orbiter 3 spacecraft was designed primarily to photograph smooth areas of the lunar surface for selection and verification of safe landing sites for the Surveyor and Apollo missions. ... A three-axis inertial system provided stabilization during maneuvers and when the sun and Canopus were occulted by the Moon. ... The spacecraft acquired photographic data from February 15 to 23, 1967, and readout occurred through March 2, 1967. ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/orbiter3.htm -- 7.3 Кб -- 15.03.1998
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36964. Neptune's Moon Proteus
Proteus . Neptune VIII - 1989N1 . Proteus [PROH-tee-us], like all six of Neptune's newly discovered small satellites, is one of the darkest objects in the solar system -- "as dark as soot" is not too strong of a description. ... Topographic Map of Proteus . ... As with all maps, it is the cartographer's interpretation; not all features are necessarily certain given the limited data available. ... This image is a shaded relief map of Proteus, a small inner satellite of Neptune. ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/proteus.htm -- 7.7 Кб -- 15.03.1998
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36965. Apollo 13 Summary
Apollo 13 Summary . Mission Profile . ... Getting Home . The Cause of the Accident . ... Lunar flyby and return . ... Command Module: Odyssey . ... The first two Apollo crews landed out on the smooth lunar mare, the lava seas that formed relatively late in the Moon's history. ... Jim Lovell, Jack Swigert, and Fred Haise - the crew of Apollo 13 - set out on the first mission to Fra Mauro; but a spacecraft accident forced them to abort the attempt before they ever got to the Moon. ...
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36966. Saturn's Satellite Atlas
Atlas . Saturn XV - 1980S28 . Atlas, the second of Saturn's known satellites, orbits near the outer edge of the A-ring and is about 40 by 20 kilometers (25 by 15 miles) in size. It is probably a shepherd satellite for Saturn's A-ring. Atlas was discovered by R. Terrile in 1980 from photographs taken by Voyager during its encounter with Saturn. Atlas Statistics . ... Mean density (gm/cm^3) . ... Rotational period (days) . Orbital period (days) . ... Credit: Calvin J. Hamilton) . ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/atlas.htm -- 4.9 Кб -- 15.03.1998
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36967. The Face on Mars
... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . ... In July, 1976, Viking Orbiter 1 was acquiring images of the Cydonia region of Mars as part of the search for potential landing sites for Viking Lander 2. ... Using the height field, it is also possible to view the "Face" from different look directions, by mapping the Viking Orbiter image directly on the the topography and then placing the "viewer" at different locations. ... Mars . ...
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36968. Galileo Project
... Earth to Jupiter . ... Earth (First Pass) . ... This mission will be the first to make direct measurements from an instrumented probe within Jupiter's atmosphere, and the first to conduct long-term observations of the planet and its magnetosphere and satellites from orbit around Jupiter. ... The Jet Propulsion Laboratory designed and developed the Galileo Jupiter orbiter spacecraft and is operating the mission. ... Early in December 1995 the Galileo orbiter and probe will approach Jupiter separately...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/galfs.htm -- 41.8 Кб -- 15.03.1998
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36969. Luna 3
... Launch Date/Time: 1959-10-04 at 02:24:00 UTC . ... Luna 3, an automatic interplanetary station, was equipped with radio communication and telemetering systems, a television system with an automatic film processing unit, a set of scientific instruments, systems for orientation relative to the sun and moon, solar cells for electric power supply, and a temperature control system. This spacecraft was controlled by radio command from Earth. ...
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36970. Statement from Daniel S. Goldin
NASA has made a startling discovery that points to the possibility that a primitive form of microscopic life may have existed on Mars more than three billion years ago. ... It is a discovery that demands further scientific investigation. ... They will outline the step-by-step 'detective story' that explains how the meteorite arrived here from Mars, and how they set about looking for evidence of long-ago life in this ancient rock. ... NASA Headquarters, . ... Mars Life from Mars: The Discovery . ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/marslif2.htm -- 4.1 Кб -- 15.03.1998
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36971. Jupiter's Moon Metis
Metis . Jupiter XVI - 1979J3 . Metis [MEE-tis] is the innermost known satellite of Jupiter. ... Metis and Adrastea lie within Jupiter's main ring and may be the source of material for the ring. ... Galileo Image of Metis . ... Although Metis was discovered by Voyager, it was no more than a point of light on images. This Galileo image is the the first image of the small moon that shows its irregular shape. ... The longest dimension of Metis is approximately 60 kilometers (37 miles) across. ...
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36972. Saturn's Moon Mimas
Mimas . ... The surface is icy and heavily cratered. ... Because Mimas has such a low temperature of about -200њ C (-328њF), the impact features may date back to the time of the moon's creation. One of the craters, named Herschel, is surprisingly large in comparison to the size of the moon. The crater is 130 kilometers (80 miles) wide, one-third the diameter of Mimas. Herschel is 10 kilometers (6 miles) deep, with a central mountain almost as high as Mount Everest on Earth. ...
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36973. The Solar System
... Multiwavelength Milky Way . Our solar system consists of an average star we call the Sun , the planets Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus , Neptune , and Pluto . ... The whole solar system, together with the local stars visible on a clear night, orbits the center of our home galaxy, a spiral disk of 200 billion stars we call the Milky Way . ... The terrestrial planets are the four innermost planets in the solar system, Mercury , Venus , Earth and Mars . ... Earth's) . ...
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36974. Surveyor
... The Surveyor probes were the first U.S. spacecraft to land safely on the Moon . The main objectives of the Surveyors were to obtain close-up images of the lunar surface and to determine if the terrain was safe for manned landings. ... The successful missions and landing dates are: Surveyor 1 on June 2, 1966; Surveyor 3 on April 19, 1967; Surveyor 5 on September 10, 1967; Surveyor 6 on November 9, 1967; and Surveyor 7 on January 9, 1968. ... Surveyor 7 Panorama of Tycho Crater . ...
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36975. Resurgent Calderas and the Valles Caldera
... Views of the Valles and Other Calderas . ... Caldera in the Spanish language means "kettle" or "cauldron"; in geological literature, it has come to be known as a volcanic collapse crater. ... Large calderas are usually formed during a collapse that truncates an entire volcanic field, not just one large cone. The Valles caldera of New Mexico is a beautiful example of a resurgent caldera located in the midst of the Jemez volcanic field. ... Landsat Image of the Valles Caldera . ...
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36976. Voyager Uranus Science Summary
... Before Voyager . ... Moons . The Rings . ... At its closest, the spacecraft came within 81,500 kilometers (50,600 miles) of Uranus's cloud tops on January 24, 1986. Voyager 2 radioed thousands of images and voluminous amounts of other scientific data on the planet, its moons, rings, atmosphere, interior and the magnetic environment surrounding Uranus. ... All nine previously known rings of Uranus were photographed and measured, as were other new rings and ringlets in the Uranian system. ...
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Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/vgrur.htm -- 19.2 Кб -- 15.03.1998
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36977. Apollo 12 Summary
Apollo 12 Summary . ... Alan L. Bean, lunar module pilot . ... And third, with an eye toward a dramatic demonstration of pinpoint targeting, if Apollo 12 Commander Pete Conrad and his shipmate Alan Bean landed close enough, they would be able to walk over to the Surveyor III spacecraft and even bring pieces of it back to Earth. ... However, details in the Surveyor photographs could be compared with details in the Lunar Orbiter pictures so that, in principle, the landing sites could be pinpointed. ...
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36978. Early Astronauts
... Then in 1959 the National Aeronautics and Space Administration asked the United States military services to list their members who met specific qualifications. The search was underway for pilots for the exciting new manned space flight program. In seeking its first space pilots, NASA emphasized jet aircraft flight experience and engineering training, and it tailored physical stature requirements to the small cabin space available in the Mercury capsule then being designed. ...
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36979. Acknowledgements
... They are responsible for the Viking CD-ROM set, which provided the raw data I have processed and used in the Mars and related pages. ... New York: Cambridge University Press, 1982. ... New York: Penguin Books, 1992. ... New York: Harper & Row, 3rd Edition, 1981. ... Simon, Seymour. ... New York: William Morrow and Company, Inc, 1992. ... Mars . New York: William Morrow and Company, Inc, 1987. ... New York: William Morrow and Company, Inc, 1985. ... New York: William Morrow and Company, Inc, 1991. ...
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36980. Mars' Moon Deimos
Deimos . Mars II . Deimos [DEE-mos] (panic) is a moon of Mars and was named after an attendant of the Roman war god Mars. ... Some scientists speculate that Deimos and Phobos (the other martian moon), are captured asteroids; however, other scientists present arguments counter to this theory. Both Deimos and Phobos are saturated with craters. ... Orbital period (days) . ... Courtesy A.Tayfun Oner) . ... Topographic Map of Deimos . ... The leading side faces forwards in the orbit of Deimos. ...
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