spacetoday.net: space news from around the webin association with SpaceNews


Water ice found on asteroid
Posted: Thu, Apr 29, 2010, 7:50 AM ET (1150 GMT)
Asteroids 24 Themis illustration (UCF) Astronomers announced Wednesday that they have detected water ice on the surface of an asteroid for the first time, a discovery that may provide clues to the origins of the Earth's oceans. Infrared observations of the asteroid 24 Themis detected water ice and organic molecules evenly distributed across the asteroid's surface, according to a study published in the current issue of the journal Nature. The discovery is surprising because ice should not be stable on a main belt asteroid like Themis because it is warm enough for the ice to vaporize over short periods of time. Scientists speculate that the ice might be preserved just below the surface. The discovery suggests that impacting asteroids could have been a source of water early in the history of the Earth, providing the water that filled the Earth's oceans.
<<previous article   next article>>
news in brief
Antenna problem postones TDRS-M launch
Posted: Sun, Jul 23 10:16 AM ET (1416 GMT)

SpaceX no longer planned powered Dragon landings
Posted: Sun, Jul 23 10:14 AM ET (1414 GMT)


news links
Saturday, August 19
United Launch Alliance Successfully Launches NASA’s TDRS-M Satellite
United Launch Alliance — 5:50 am ET (0950 GMT)
ULA hits 120 successful missions with NASA satellite launch
Denver Business Journal — 5:49 am ET (0949 GMT)


about spacetoday.net   ·   info@spacetoday.net   ·   mailing list