At issue is $700 million, already appropriated by Congress, to build a spacecraft, launch it to Mars, and once there to serve ...

NASA's Mars Sample Return (MSR) mission could have been a major breakthrough in assessing the habitability of the Red Planet. Unfortunately, however, it has effectively been cancelled, as the U.S.

NASA has committed to running two competing landing architectures side by side for its Mars Sample Return mission, a strategy the agency has never attempted for a planetary return campaign. The ...

Nasa has officially opened bidding for a new Mars telecommunications spacecraft, but the $700 million mission is already ...