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 ...

ESA plans to award a contract to Airbus Defence and Space, partnered with Thales Alenia Space, to build the Earth Return Orbiter mission to bring back samples of Mars to Earth. Credit: Airbus ...

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 ...