The moon performed a cosmic ballet with Mars this week.

Tech billionaire Elon Musk said that he plans to send spacecraft to Mars in about two years and man missions afterward if he ...

Steeped in the United States' space race with the Soviet Union, the pursuit of a deeper understanding of Mars' resources and its viability as a place to one day send humans has compelled us to ...

Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.

the upcoming game Space Station Adventure takes this concept to new interstellar heights. The game invites players to step into the shoes—or rather, the circuits—of an artificial intelligence tasked ...

A Russian cosmonaut took a short ride at the end of a robotic arm to jettison spent equipment that he and a crewmate collected during a spacewalk outside the International Space Station today (Dec ...