Discovery is set for a launch attempt Friday at 11:59 p.m., as engineers will evaluate a liquid hydrogen valve that developed problems during tanking operations Tuesday evening.
Discovery is set for a launch attempt Friday at 11:59 p.m., as engineers will evaluate a liquid hydrogen valve that developed problems during tanking operations Tuesday evening.
NASA's Lunar Reconnaissance Orbiter is now in lunar orbit. The Lunar Crater Observation and Sensing Satellite will impact the moon in October.
Commander Gennady Padalka leads a six-member crew of astronauts from Canada, Europe, Japan, Russia, and the United States.