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Asteroid 1999 RQ36 Shape Model

NASA Scientist Figures Way to Weigh Space Rock
May 24, 2012 - A scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif., has accurately determined the mass of a nearby asteroid from millions of miles away. The celestial equivalent of "guess your weight" was achieved by Steve Chesley of JPL's Near-Earth Object Program Office by utilizing data from three NASA assets - the Goldstone Solar System Radar in the California desert, the orbiting Spitzer Space telescope, and the NASA-sponsored Arecibo Observatory in Puerto Rico.
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An artist's concept of Rosetta in orbit while the mission's lander explores the comet's surface.

Mission to Land on a Comet
January 31, 2012 - Europe's Rosetta spacecraft is en route to intercept a comet– and to make history. In 2014, Rosetta will enter orbit around comet 67P/Churyumov-Gerasimenkoand land a probe on it, two firsts.
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Near-Earth asteroid 2011 MD

Bend it Like Beckham! Small Asteroid to Whip Past Earth on June 27, 2011
June 23, 2011 - Near-Earth asteroid 2011 MD will pass only 12,300 kilometers (7,600 miles) above the Earth's surface on Monday June 27 at about 1:00 PM EDT. The asteroid was discovered by the LINEAR near-Earth object discovery team observing from Socorro, New Mexico.
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Comet Hartley 2

Science Paper Details NASA EPOXI Flyby of Hyper Comet
June 16, 2011 - PASADENA, Calif. -- Comet Hartley 2's hyperactive state, as studied by NASA's EPOXI mission, is detailed in a new paper published in this week's issue of the journal Science.
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These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right). These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right).

NASA's Stardust: Good to the Last Drop
March 23, 2011 - PASADENA, Calif. -- On Thursday, March 24 at about 4 p.m. PDT (7 p.m. EDT), NASA's Stardust spacecraft will perform a final burn with its main engines.
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These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right). These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right).

NASA Releases Images of Man-Made Crater on Comet
February 15, 2011 - PASADENA, Calif. -- NASA's Stardust spacecraft returned new images of a comet showing a scar resulting from the 2005 Deep Impact mission.
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These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right). These two images show the different views of comet Tempel 1 seen by NASA's Deep Impact spacecraft (left) and NASA's Stardust spacecraft (right).

NASA Reschedules News Conference on Stardust-NExT Comet Flyby
February 15, 2011 - PASADENA, Calif. -- NASA has rescheduled the news conference about the Stardust-NExT comet flyby for 12:30 p.m. PST (3:30 p.m. EST) today. The briefing will release images and early data from the comet encounter and will be carried live on NASA Television and the agency's website.
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