(CNN) — Space shuttle Endeavour landed safely Sunday afternoon at California’s Edwards Air Force Base after NASA waved off two opportunities for a Florida landing because of poor weather. Endeavour glides in for a landing Sunday at California’s Edwards Air Force Base. The shuttle, steered by commander Christopher Ferguson, landed …

WASHINGTON (CNN) — 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. A photo illustration of a laser-equipped vehicle that is set to be part …