Mars' magnetic field may have survived 200 million years longer than scientists had thought — crucially, long enough for it ...

General — er, President — Thaddeus Ross (Harrison Ford) gets a lot bigger and redder in the new Captain America: Brave New ...

The European Space Agency's Hera mission is on its way toward Mars, where it will get a gravity assist before going on to its asteroid target.

Father-Daughter Team Breaks Ground Decoding Mysterious 'Alien' Signal From Mars In one of the projects, NASA collaborated ...