Researchers exposed two lichen species to Mars-like atmospheric conditions for five hours—and one performed impressively.

Billionaire SpaceX ally is a space industry outsider but is broadly viewed as a solid choice to lead the space agency.

A strange rock covered in tiny spheres may hold secrets to Mars’ watery — or fiery — past.

Warm spells on Mars may spark massive dust storms, scientists say, bringing us closer to predicting Martian weather. Today’s ...