A NASA investigation into the death of a space shuttle worker who fell from a launch pad at the agency's Florida spaceport last week has turned up no signs of foul play, or failures in safety equipment, a top shuttle official says. Full story
This story was updated at 2:18 p.m. EST. NASA has postponed the launch of space shuttle Discovery's final mission to no sooner than early February the latest in a long string of delays that have kept the spacecraft grounded for over than a month. Full story
The space shuttle Discovery's launch is being taken off the schedule for this month and will take place no earlier than Feb. 3, due to continuing concerns about cracks that were found in the external fuel tank, NASA said Friday. Full story
Less than two weeks before the space shuttle Discovery is scheduled to launch on its last flight, uncertainty still remains as to exactly when NASA's very final orbiter mission will fly, bringing the storied shuttle era to a close next year. Full story
NASA's space shuttle manager says it wouldn't be hard to add more shuttle flights. The real question is money. Full story
NASA is confident that its first test flight of the new Ares I-X rocket will go well next week. But if it ends in an explosive failure, the agency says that the nearby space shuttle Atlantis atop its own launch pad will be safe. Full story
