The latest analysis of data from NASA's Deep Impact spacecraft shows that comet 103P/Hartley 2 is hyperactive in terms of the material it spews out, compared to the other comets observed up close to date. The comet also ...
Space Exploration
Oct 4, 2011
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The oceans cover 71% of our planet, with over half with a depth greater than 3000 m. Although our knowledge is still very limited, we know that the deep ocean contains a diversity of habitats and ecosystems, supports high ...
Earth Sciences
Aug 2, 2011
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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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(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) -- 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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Writing in the scientific journal Nature, scientists have called for increased discussion of independent monitoring of deep-sea hydrocarbon industry activity with the aim of obtaining a better understanding of its ecological ...
Earth Sciences
May 12, 2011
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In most cases, a Valentine's Day rendezvous that resembles a flight through artillery fire is less than ideal.
Space Exploration
Feb 21, 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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