CAPE CANAVERAL, Fla. – The fretting about Discovery’s liftoff focused on foam insulation covering its fuel tank. But in the end, poor weather scotched Saturday’s much-anticipated space shuttle launch ...

CAPE CANAVERAL, Fla. - With just three months remaining until liftoff, the astronauts assigned to the first space shuttle flight since the Columbia catastrophe still don't know what type of repair kit ...

Paul Weitz, a retired NASA astronaut who commanded the first flight of the space shuttle Challenger and also piloted the Skylab in the early 1970s, has died. He was 85. Weitz died at his retirement ...