Two movies derived from images taken by the two cameras aboard NASA's EPOXI mission spacecraft show comet Hartley 2 is, as expected, quite active, and it provides information on the nucleus's rotation. The spacecraft has ...
Space Exploration
Nov 2, 2010
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(PhysOrg.com) -- NASA's EPOXI mission continues to close in on its target, comet Hartley 2, at a rate of 12.5 kilometers (7.8 miles) per second. On Nov. 4 at about 10:01 a.m. EDT (7:01 a.m. PDT) the spacecraft will make its ...
Space Exploration
Oct 27, 2010
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(PhysOrg.com) -- Backyard stargazers with a telescope or binoculars and a clear night's sky can now inspect the comet that in a little over two weeks will become only the fifth in history to be imaged close up. Comet Hartley ...
Space Exploration
Oct 19, 2010
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NASA's Deep Impact/EPOXI spacecraft is hurtling toward Comet Hartley 2 for a breathtaking 435-mile flyby on Nov. 4th. Mission scientists say all systems are go for a close encounter with one of the smallest yet most active ...
Space Exploration
Oct 18, 2010
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(PhysOrg.com) -- NASA's Deep Impact/Epoxi spacecraft successfully performed a maneuver to refine its orbit prior to an upcoming Earth flyby June 27.
Space Exploration
May 31, 2010
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Just three days shy of one year before its planned flyby of comet Tempel 1, NASA's Stardust spacecraft has successfully performed a maneuver to adjust the time of its encounter by eight hours and 20 minutes. The delay maximizes ...
Space Exploration
Feb 18, 2010
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Powerful radar systems have played a major role in the study of planets, moons, asteroids, and other objects in our Solar System for several decades, and now have a "unique role" to play in planetary defense—"providing ...
Astronomy
Apr 20, 2022
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Growing up in the California desert, Qicheng Zhang developed an early appreciation for stars and the universal expanse beyond the sky. But his biggest space curiosity by far was with comets, those celestial bodies of ice, ...
Space Exploration
Nov 17, 2016
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After 12 years of hurtling through space in pursuit of a comet, the Rosetta probe ended its mission Friday with a slow-motion crash onto the icy surface of the alien world it was sent out to study.
Space Exploration
Sep 30, 2016
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Comet impact on Earth are synonymous with great extinctions, but now research presented at the Goldschmidt geochemistry conference in Prague shows that early comet impact would have become a driving force to cause substantial ...
Space Exploration
Aug 18, 2015
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