NASA has snapped an image of an over 1,000ft-long, winding trail cut through the sand on Mars. And the image may be the first of its kind. The mysterious pathfinder was captured by the Mars ...

Science has often wondered about life on Mars, but a somewhat recent discovery may completely change our understanding of the possibility.

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

Yellow sulfur crystals spilled out from the inside. This is the first instance of finding sulfur on the Red Planet in its pure, elemental form. Although scientists previously suspected that the ...

These crystals say a lot because it means Mars once experienced ... “Finding a field of stones made of pure sulfur is like finding an oasis in the desert. It shouldn’t be there, so now we have to ...