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

Ulysses mission ends
Posted: Tue, Jul 7, 2009, 5:16 AM ET (0916 GMT)
Ulysses illustration (ESA) Spacecraft controllers shut down the ESA/NASA Ulysses spacecraft last week, ending a nearly 18-year mission to study the Sun. The spacecraft, launched by the space shuttle in October 1990, provided scientists with the first observations of the polar regions of the Sun and lasted far longer than originally planned. Project officials had expected the mission to end a year earlier as the power output of the spacecraft's RTG dropped to the point where heaters would no longer be able to keep the spacecraft's fuel lines from freezing. However, occasional use of the spacecraft's thrusters kept the fuel lines open, allowing scientists to eke out an additional year's worth of data. Project officials decided to shut down the spacecraft now as power levels dropped further and time on ground stations became more difficult to obtain.
<<previous article   next article>>
news in brief
Atlas launches GPS satellite
Posted: Thu, Oct 30 9:07 AM ET (1307 GMT)

Progress cargo spacecraft sent to ISS
Posted: Thu, Oct 30 8:56 AM ET (1256 GMT)

Antares rocket explodes moments after liftoff
Posted: Wed, Oct 29 8:04 AM ET (1204 GMT)

news links
Friday, October 31
An eyewitness account: Wallops Island is burning
Spaceflight Now — 5:47 am ET (0947 GMT)
Canadian Space Agency President To Depart
Space News — 5:46 am ET (0946 GMT)
NASA Prepares To Host Hush-Hush Military Program at KSC
Space News — 5:45 am ET (0945 GMT)


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