Twitter users let fly with some 10.4 million tweets during the presidential debate Wednesday night, and, contrary to social media stereotypes, they weren't all nasty reviews of the two candidates.

NASA is smoothing out the final details of its future program to bring back treasured martian samples, also known as the Mars Sample Return Program, and its new helicopters might make future missions ...

NASA is delaying plans to move the Mars Sample Return program to its next phase of development after an independent review found serious issues with its technical readiness, cost and schedule. Credit: ...

WASHINGTON — NASA will seek “out of the box” ideas in a bid to reduce the costs and shorten the schedule for returning samples from Mars. In an April 15 briefing, agency officials announced they would ...