Scientists have switched off several on-board instruments to halt rising temperatures inside India's first unmanned lunar spacecraft.

From a remote valley in Northern California, Jill Tarter is listening to the universe.

NASA officials Sunday waved off the first opportunity for space shuttle Endeavour to return to Earth, citing poor weather conditions.

NASA's launch of the Mars Science Laboratory -- hampered by technical difficulties and cost overruns -- has been delayed until the fall of 2011, NASA officials said at a news conference Thursday in Washington.