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Latest EPOXI mission Stories

2011-06-16 21:33:18

CO2 jets confirmed, new insight into composition, 'excited' rotation and surface features revealed 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. The comet was visited last fall by NASA's Deep Impact spacecraft during its EPOXI mission. The EPOXI science team's new, in-depth analysis of the images and data taken during the flyby confirms its...

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2010-11-23 06:15:00

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 Day (Feb. 14, 2011). It will perform NASA's second comet flyby within four months. "One comet down, one to go," said Tim Larson, project manager for both the Stardust-NExT mission and the EPOXI mission -- which successfully flew past comet Hartley 2 on Nov. 4. The trajectory correction...

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2010-11-18 13:05:00

Scientists have analyzed images from the EPOXI mission's pictures taken of comet Hartley 2 and found a cometary snow storm created by carbon dioxide jets spewing out tons of ice particles. Scientists compared the new images to ones taken from a comet the spacecraft had previously visited, Tempel 1.  "This is the first time we've ever seen individual chunks of ice in the cloud around a comet or jets definitively powered by carbon dioxide gas," Michael A'Hearn, principal investigator for...

2010-11-18 12:05:00

WASHINGTON, Nov. 18, 2010 /PRNewswire-USNewswire/ -- The EPOXI mission's recent encounter with comet Hartley 2 provided the first images clear enough for scientists to link jets of dust and gas with specific surface features. NASA and other scientists have begun to analyze the images. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The EPOXI spacecraft revealed a cometary snow storm created by carbon dioxide...

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2010-11-11 06:40:00

Initial science results on comet released from University of Maryland, much more to come UMD scientists say. One of the biggest comet findings coming out of the amazing images and data taken by the University of Maryland-led EPOXI mission as it zipped past comet Hartley 2 last week is that dry ice is the 'jet' fuel for this comet and perhaps many others. Images from the flyby show spectacular jets of gas and particles bursting from many distinct spots on the surface of the comet. This is the...

2010-11-04 11:27:00

BOULDER, Colo., Nov. 4, 2010 /PRNewswire/ -- The Ball Aerospace-built Deep Impact Flyby spacecraft successfully completed another "first" for NASA on November 4 when its onboard cameras captured spectacular images of comet Hartley 2 as part of the EPOXI mission. This was the first time in history that two comets - Hartley 2 and Tempel 1 - have been imaged by the same spacecraft, same instruments, and with the same spatial resolution. (Photo:...

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2010-11-03 08:15:00

The EPOXI mission spacecraft has refined its path toward a Nov. 4 flyby of comet Hartley 2, successfully performing its final maneuver Tuesday at 8 a.m. PDT (11 a.m. EDT). The spacecraft burned its engines for 6.8 seconds, changing the spacecraft's velocity by 1.4 meters per second (3 miles per hour). "I've worked the Stardust flyby of comet Wild 2 and the Deep Impact encounter with comet Tempel 1, and I have never seen a comet flit around the sky like this one," said mission navigator Shyam...

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2010-11-02 09:39:58

NASA will hold a series of news and educational events about the EPOXI mission's close encounter with comet Hartley 2, scheduled to occur at approximately 7 a.m. PDT (10 a.m. EDT) on Thursday, Nov. 4. The spacecraft will provide the most extensive observations of a comet in history. Tuesday, Nov. 2: The public is invited to a free lecture on Nov. 2 by the discoverer of comet Hartley 2, Malcolm Hartley. The lecture will take place at JPL's von Karman Auditorium at 7 p.m. PDT. Hartley, a...

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2010-10-28 10:31:19

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 is expected to be about 7:02 a.m. PDT (10:02 a.m. EDT). Yesterday's trajectory correction maneuver began at 11 a.m. PDT (2 p.m. EDT), when the spacecraft burned its engines for 60 seconds, changing its velocity by 1.59 meters per second (3.6 miles per hour). On Nov. 4, the...

2010-10-05 14:26:00

WASHINGTON, Oct. 5 /PRNewswire-USNewswire/ -- NASA's Wide-field Infrared Survey Explorer, or WISE, caught a glimpse of the comet that the agency's EPOXI mission will visit in November. The WISE observation will help the EPOXI team put together a large-scale picture of the comet, known as Hartley 2. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) "WISE's infrared vision provides data that complement what EPOXI...


Word of the Day
kenspeckle
  • Having so marked an appearance as easily to be recognized.
This word may come from the Swedish 'kanspak,' quick at recognizing persons or things, or else from confusion with 'conspicuous.'