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


Deep Impact comet surprisingly fluffy
Posted: Wed, Sep 7, 2005, 9:21 PM ET (0121 GMT)
Tempel 1 comet after Deep Impact collision (NASA/JPL) Scientists analyzing data from NASA's Deep Impact mission said this week that the comet the Deep Impact probe collided with had an unexpectedly weak structure. Planetary scientists, discussing the results from the mission at a conference in England, said that the nucleus of comet Tempel 1 has a fluffy structure that is weaker than a bank of powder snow. That porous structure would allow the outer layers of the nucleus to very quickly heat up and cool down, potentially preserving the inner portions of the comet in a pristine state since the comet's formation early in the solar system's history. The plume of materials ejected by the comet by the impact of the Deep Impact probe also had a high amount of organic molecules, which confirms speculation by some scientists that comets may be a key source of the organic material needed for life to develop on terrestrial worlds like the Earth.
<<previous article   next article>>
news in brief
Russia plans to resume crewed Soyuz launches in December
Posted: Sun, Nov 4 9:00 AM ET (1400 GMT)

China launches Beidou satellite
Posted: Sun, Nov 4 8:59 AM ET (1359 GMT)

Dawn mission declared over
Posted: Sun, Nov 4 8:58 AM ET (1358 GMT)

news links
Wednesday, November 14
Campus to honor Apollo 8
Tarrant County College District Collegian — 5:17 am ET (1017 GMT)


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