NASA had no idea that pieces of foam insulation were breaking off space shuttle fuel tanks so often at liftoff or that the hand-applied material was full of flaws, Columbia accident investigators say.

also will identify potential lunar resources and document aspects of the lunar radiation environment relevant to human biological responses. Proposals were submitted to NASA in response to an ...

The agreement makes it possible for NIH-funded biologists to get experiments into orbit and to tap into NASA expertise. And, for the first time, outside investigators will have access to NASA ground ...