“Kepler Update on This Week @NASA This week, the Kepler science team announced the spacecraft was in a Thruster-Controlled Safe Mode. The root cause was undetermined but the proximate cause appears to be an attitude error caused by a malfunction in Kepler's reaction wheel 4, one of the telescope's pointing mechanisms. The team has since put… ”
“Amazing helmet cam views as Chris Cassidy and @AstroMarshburn are now working to stow the old coolant pump they replaced earlier in today's spacewalk. Watch it live on @NASA TV http://www.nasa.gov/ntv. ”
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