A mission to Mars sounds exciting, but surviving the trip may be one of the hardest challenges humans have ever faced. Astronauts would spend months traveling through deep space, exposed to radiation, ...

Mars used to have a warmer and wetter climate, which changed after billions of years because the Sun's solar wind removed ...

mars sitting on a field of stars - Eyeem Mobile Gmbh/Getty Images NASA has been working toward one of its most exciting and ambitious Mars missions – its goal of putting humans on the Red Planet – for ...

SpaceX CEO Elon Musk announced Sunday that his company had “shifted focus” from taking humans to Mars to building a ...