space news from around the webin association with SpaceNews

Reaction wheel fails on Kepler, putting mission's future in question
Posted: Thu, May 16, 2013, 7:50 AM ET (1150 GMT)
Kepler spacecraft illustration (NASA/Ames) A second reaction wheel on NASA's Kepler spacecraft has failed, forcing agency officials to consider alternative missions for the exoplanet-hunting spacecraft. NASA reported Wednesday afternoon that Kepler went into safe mode on Tuesday, and when recovering the spacecraft found that one of the spacecraft's four reaction wheels was not working. The reaction wheels are used to keep the spacecraft properly oriented, and three are needed to operate the spacecraft normally; another reaction wheel had failed last year. With only two wheels working, Kepler cannot continue its mission to look for extrasolar planets, but project officials are looking at ways they can possibly recover one of the failed wheels. NASA will also look at alternative uses of Kepler, such as looking for asteroids, that do not require the same pointing precision and could be done with the remaining two wheels plus thrusters. Kepler, launched in 2009, has already completed its prime mission, and project scientists said there was still a large volume of data from the spacecraft that they had yet to fully analyze.
<<previous article   next article>>
news in brief
SpaceX launches second set of Gen2 Starlink satellites
Posted: Sun, Jan 29 10:04 AM ET (1504 GMT)

Japan launches military reconnaissance satellite
Posted: Sun, Jan 29 10:00 AM ET (1500 GMT)

Rocket Lab conducts first Electron launch from Virginia
Posted: Sun, Jan 29 9:58 AM ET (1458 GMT)

news links
Sunday, February 5
SpaceX to launch communications satellite from Cape Canaveral
WESH-TV Orlando — 7:36 am ET (1236 GMT)
SpaceX rockets power record number of satellite launches
Financial Times — 7:35 am ET (1235 GMT)

about   ·   ·   mailing list