This Mars rock is up for auction at Sotheby's in New York City this week, which is why it's currently on display in the Upper ...

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...

NASA's Mars Sample Return mission has long been a point of contention for the agency, but now someone might have a plan to ...