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Latest EPOXI Stories

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2011-06-17 08:55:00

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. After visiting a comet and imaging distant stars for hints of extrasolar planets, you could say the spacecraft used for EPOXI had seen its fair share of celestial wonders. But after about 3.2 billion miles (5.1 billion kilometers) of deep space travel, one final wonder awaited the mission's project and science teams. On Nov. 4, 2010, the...

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...

2010-11-16 07:41:36

NASA will hold a news conference at 1 p.m. EST on Thursday, Nov. 18, to discuss new scientific findings from the recent EPOXI mission spacecraft encounter with comet Hartley 2. The news conference will originate from the NASA Headquarters auditorium at 300 E St. SW in Washington. It will be carried live on NASA Television. Media representatives may attend the conference, ask questions by phone or from participating NASA locations. To RSVP or obtain dial-in information, journalists must send...

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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 15:48:00

WASHINGTON, Nov. 4, 2010 /PRNewswire-USNewswire/ -- NASA's EPOXI mission spacecraft successfully flew past comet Hartley 2 at 10 a.m. EDT Thursday. Scientists say initial images from the flyby provide new information about the comet's volume and material spewing from its surface. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) "Early observations of the comet show that, for the first time, we may be able to...

2010-11-04 11:51:00

WASHINGTON, Nov. 4, 2010 /PRNewswire-USNewswire/ -- The following is a statement from NASA Administrator Charles Bolden on the EPOXI mission's successful flyby of comet Hartley 2: (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) "NASA extended its pioneering exploration of the solar system today with the successful flyby of comet Hartley 2 by our EPOXI mission. The stunning new images returned of the comet as...

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:...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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