(PhysOrg.com) -- The EPOXI mission spacecraft has refined its path toward a Nov. 4 flyby of comet Hartley 2, successfully performing its final maneuver today at 8 a.m. PDT (11 a.m. EDT). The spacecraft burned its engines ...
Space Exploration
Nov 2, 2010
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(PhysOrg.com) -- NASA's EPOXI mission spacecraft successfully flew past comet Hartley 2 at 7 a.m. PDT (10 a.m. EDT) Thursday, Nov. 4. Scientists say initial images from the flyby provide new information about the comet's ...
Space Exploration
Nov 5, 2010
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Comet Hartley 2, is in a hyperactive class of its own compared to other comets visited by spacecraft, says a University of Maryland-led study published in the June 17 issue of the journal Science.
Space Exploration
Jun 16, 2011
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Astronomers using NASA's Spitzer Space Telescope have observed what most likely are strong carbon dioxide emissions from Comet ISON ahead of its anticipated pass through the inner solar system later this year.
Space Exploration
Jul 24, 2013
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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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In one of its final mission trajectory correction maneuvers, the EPOXI mission spacecraft has refined its orbit, preparing it for the flyby of comet Hartley 2 on Nov. 4. The time of closest approach to the comet on that day ...
Space Exploration
Oct 28, 2010
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(PhysOrg.com) -- The comet Hartley 2 is a relatively small and elongated comet - only about 0.6 x 0.4 kilometers in size. It orbits the sun every 6.46 years, getting as close to it as 1.05 astronomical units (the Earth is ...
Astronomy
Jun 15, 2011
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(PhysOrg.com) -- Eighty-six days out from its appointment with a comet, NASA's Stardust spacecraft fired its thrusters to help refine its flight path. The Stardust-NExT mission will fly past comet Tempel 1 next Valentine's ...
Space Exploration
Nov 23, 2010
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Five years after a NASA spacecraft bombarded a comet, it will visit another one Thursday. This time, there won't be celestial fireworks.
Space Exploration
Nov 4, 2010
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University of Maryland Astronomy Professor Michael A'Hearn, leader of NASA's Deep Impact and EPOXI comet missions is vice-chair of a new report from the National Academy of Sciences on detecting and protecting Earth from ...
Space Exploration
Jan 25, 2010
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