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Last updated on April 24, 2014 at 14:46 EDT

Latest EPOXI Stories

Comet Find Is NEOWISE's First Since Activation
2014-03-01 06:14:41

[ Watch the Video: What's So Weird About A New Comet? ] DC Agle, NASA Jet Propulsion Laboratory NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) spacecraft has spotted a never-before-seen comet - its first such discovery since coming out of hibernation late last year. "We are so pleased to have discovered this frozen visitor from the outermost reaches of our solar system," said Amy Mainzer, the mission's principal investigator from NASA's Jet Propulsion...

2013-09-20 23:01:49

The NASA/JPL/UMD Deep Impact spacecraft ends its missions, but leaves a powerful, UMD-led legacy of scientific discovery. College Park, MD (PRWEB) September 20, 2013 NASA today announced the end of operations for the Deep Impact spacecraft, history’s most traveled deep-space comet hunter, after trying unsuccessfully for more than a month to regain contact with the spacecraft. UMD scientists – who helped conceive the mission, bring it to reality and keep it going years longer than...

2013-09-20 12:20:34

WASHINGTON, Sept. 20, 2013 /PRNewswire-USNewswire/ -- After almost 9 years in space that included an unprecedented July 4th impact and subsequent flyby of a comet, an additional comet flyby, and the return of approximately 500,000 images of celestial objects, NASA's Deep Impact mission has ended. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The project team at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., has reluctantly pronounced the mission at an...

NASA Ends Deep Impact Mission
2013-09-20 11:19:46

Lee Rannals for redOrbit.com - Your Universe Online NASA announced on Friday that its Deep Impact mission has ended after losing communication with the spacecraft. The Deep Impact mission spent nine years in space snapping about 500,000 images and flying past comets. It was the most-traveled comet research mission in history, tallying a total of 4.7 billion miles in its nine-year journey. The last time NASA was able to communicate with the probe was on August 8. "The project team at...

NASA Frustrated With Computer Malfunction On Deep Impact Probe
2013-09-11 14:12:45

Brett Smith for redOrbit.com - Your Universe Online As you probably know from personal experience, computer-related problems can be some of the most frustrating to deal with. So imagine the frustration over at NASA, where scientists are having problems with the computer on the space agency’s Deep Impact probe – currently adrift millions of miles away from Earth. NASA scientists announced on Tuesday that they haven’t had contact with the deep-space probe since August 8 of this...

Donald K. Yeomans Receives Carl Sagan Medal For Public Communication
2013-07-15 10:16:17

NASA's Jet Propulsion Laboratory For his work making the solar system's nomads of the night sky -- near-Earth objects, asteroids and comets -- tangible and compelling for millions of people, Donald K. Yeomans, the manager of NASA's Near-Earth Object Program Office at the Jet Propulsion Laboratory in Pasadena, has received the 2013 Carl Sagan Medal from the American Astronomical Society (AAS). The Sagan Medal recognizes a planetary scientist for excellence in public communication....

Image 1 - Comet Found To Contain Ocean-Like Water
2011-10-05 14:10:47

According to a new study published in the journal Nature on Wednesday, the Earth's ocean may have been created by comets. Measurements taken from the Herschel Space Observatory show that comet Hartley 2 contains water with the same chemical signature as Earth's oceans. This comet lies in the Kuiper Belt about 30 to 50 times as far away as the distance between Earth and the sun. "Our results with Herschel suggest that comets could have played a major role in bringing vast amounts of...

Image 1 - Hyperactive Hartley 2 Has A Split History
2011-10-04 12:20:12

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 shows surprising diversity - ice on the comet´s sunlit surface is found in patches that are isolated from areas of dust. In addition, one lobe of the dog-bone shaped comet may have lost much more of the primordial material from the formation of the comet than the...

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2011-07-28 13:46:31

By Karen C. Fox, NASA's Goddard Space Flight Center On Nov. 4, 2010, NASA's EPOXI spacecraft came within 450 miles of Comet Hartley 2, a small comet not even a mile in diameter, which takes about six and a half years to orbit the sun. Designated officially as 103P/Hartley 2, the comet thus became the fifth for which scientists have collected close-up images. But the comet was also observed from another spacecraft: the Solar and Heliospheric Observer (SOHO), better known for its observations...

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2011-07-18 09:49:18

New findings from NEOWISE, the asteroid- and comet-hunting portion of NASA's Wide-field Infrared Survey Explorer mission, show that comet Hartley 2 leaves a pebbly trail as it laps the sun, dotted with grains as big as golf balls. Previously, NASA's EPOXI mission, which flew by the comet on Nov. 4, 2010, found golf ball- to basketball-sized fluffy ice particles streaming off comet Hartley 2. NEOWISE data show that the golf ball-sized chunks survive farther away from the comet than previously...