(PhysOrg.com) -- At the heart of every comet lies a remnant of the dawn of the solar system. Or is that remnants? Astronomers don't know, but the answer would give them a clearer picture of exactly how comets were born eons ...
Space Exploration
May 17, 2011
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(PhysOrg.com) -- NASA's Stardust spacecraft returned new images of a comet showing a scar resulting from the 2005 Deep Impact mission. The images also showed the comet has a fragile and weak nucleus.
Space Exploration
Feb 16, 2011
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A NASA spacecraft's flyby with a comet showed erosion on the Tempel 1's surface since it skimmed by the Sun in 2005, and revealed Tuesday the first clear pictures of the crater made by a Deep Impact probe.
Space Exploration
Feb 15, 2011
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(PhysOrg.com) -- Mission controllers at NASA's Jet Propulsion Laboratory, Pasadena, Calif., watched as data downlinked from the Stardust spacecraft indicated it completed its closest approach with comet Tempel 1.
Space Exploration
Feb 15, 2011
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(PhysOrg.com) -- In the beginning, both couples seemed meant for each other.
Space Exploration
Feb 8, 2011
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Like two strangers in the night, a US spacecraft and a speeding comet will dash by one another on Valentine's Day, NASA said Wednesday, and skywatchers are eager to see what happens.
Space Exploration
Jan 19, 2011
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(PhysOrg.com) -- Radar imaging at NASA's Goldstone Solar System Radar in the California desert on Dec. 11 and 12, 2010, revealed defining characteristics of recently discovered asteroid 2010 JL33. The images have been made ...
Space Exploration
Jan 12, 2011
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The P-T mass extinction may have been instigated by populations of algae dying. According to one group of scientists, this die-off of large numbers of relatively simple life forms caused a crash in the ocean's entire food ...
Earth Sciences
Dec 14, 2010
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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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On its recent trip by comet Hartley 2, the Deep Impact spacecraft took the first pictures of, and flew through, a storm of fluffy particles of water ice being spewed out by carbon dioxide jets coming from the rough ends of ...
Space Exploration
Nov 18, 2010
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