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


Cassini reveals compositional differences in Saturn's rings
Posted: Thu, Jul 8, 2004, 7:56 AM ET (1156 GMT)
Saturn rings seen by Cassini (NASA/JPL) Spectroscopic data from NASA's Cassini spacecraft has shown that the composition of Saturn's extensive ring system is not uniform but varies from region to region. Scientists at the University of Colorado reported Wednesday that while water ice is the dominant constituent in the rings, the amount of water varies, increasing in the outer rings. Cassini has also detected possible silicate and organic materials in the ring that one scientist described as "mud". The results support models that use the breakup of a large icy object to explain the formation of the planet's rings.
<<previous article   next article>>
news in brief
Space Force adds Rocket Lab and Stoke Space to NSSL contract
Posted: Sun, Mar 30 9:19 AM ET (1319 GMT)

Cygnus departs from ISS
Posted: Sun, Mar 30 9:14 AM ET (1314 GMT)

Vulcan Centaur certified for national security launches
Posted: Sun, Mar 30 9:10 AM ET (1310 GMT)

news links
Wednesday, April 2
Europe’s Launcher Revival Faces Challenging Start
Aviation Week — 5:18 am ET (0918 GMT)
Gwynne Shotwell Rides SpaceX To Billion-Dollar Fortune
Forbes.com — 5:15 am ET (0915 GMT)
FAA closes investigation of January SpaceX Starship explosion
KTBC-TV Austin, TX — 5:11 am ET (0911 GMT)


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