styczeń 1st, 1970 at 01:00
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As NASA’s MESSENGER spacecraft drew closer to Mercury for its historic first flyby, the spacecraft acquired this image showing a variety of surface textures, including smooth plains at the center of the image, numerous impact craters and rough material that appears to have been ejected from the large crater to the lower right. MESSENGER has acquired over 1200 images of Mercury.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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One week ago, the MESSENGER spacecraft transmitted to Earth the first high-resolution image of Mercury by a spacecraft in over 30 years, since the three Mercury flybys of Mariner 10 in 1974 and 1975. MESSENGER’s Wide Angle Camera (WAC), part of the Mercury Dual Imaging System (MDIS), is equipped with 11 narrow-band color filters, in contrast to the two visible-light filters and one ultraviolet filter that were on Mariner 10’s vidicon camera.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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This is a Hubble Space Telescope picture of one of the least massive and coolest stars even seen (upper right). It is a diminutive companion to the K dwarf star called GL 105A (also known as HD 16160) seen at lower left. The binary pair is located 27 light-years away in the constellation Cetus. Based on the Hubble observation, astronomers calculate that the companion, called GL 105C, is 25,000 times fainter than GL 105A in visible light.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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Official portrait of STS-47 Endeavour, Orbiter Vehicle (OV) 105, Spacelab Japan (SL-J) Mission Specialist Mae C. Jemison wearing launch entry suit (LES) and holding helmet. Jemison is an M.D., a 1987 astronaut candidate, and member of Astronaut Class 12.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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About 58 minutes before MESSENGER’s closest approach to Mercury on Oct. 6, 2008, the Narrow Angle Camera captured this close-up image of a portion of Mercury’s surface — imaged by spacecraft for the first time during this flyby. The features in the foreground, near the right side of the image, are close to the terminator, the line between the sunlit dayside and dark night side of the planet, so shadows are long and prominent.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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MESSENGER successfully flew by Mercury on Oct. 6, 2008, using the planet’s gravity to alter the probe’s path and help put it on track to become, in March 2011, the first spacecraft ever to orbit the innermost planet in the solar system. This image, acquired about 89 minutes before the craft’s closest approach to Mercury, resembles the optical navigation images taken leading up to the flyby.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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Machaut is the name of a crater, approximately 100 kilometer (60 mile) in diameter, first seen under high-sun conditions by Mariner 10 in the 1970s. The crater is named for the medieval French poet and composer Guillaume de Machaut. This NAC image shows an amazing new view of Machaut taken during MESSENGER’s second flyby of Mercury on Oct. 6, 2008. The slanting rays of the Sun cast shadows that reveal numerous small craters and intricate features.
Original post by interia@firma.interia.pl (INTERIA.PL)
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styczeń 1st, 1970 at 01:00
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This Wide Angle Camera image was acquired 9 minutes and 14 seconds after MESSENGERs closest approach to Mercury on its second flyby, when the spacecraft was moving at 6.1 kilometers/second (3.8 miles/second). The image, centered at about 2.4S, 290E, is one in a sequence of 55: a five-frame mosaic with each frame in the mosaic acquired in all 11 of the WAC filters.
Original post by interia@firma.interia.pl (INTERIA.PL)
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