NASA’s Curiosity rover has uncovered intriguing traces of sulfur crystals embedded in Martian rock formations, adding weight to the theory that ancient Mars may have supported microbial life. The ...

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 ...

Is there life on Mars? When curiosity breaks through a rock, it reveals this within. Sulfur crystals were discovered on the mysterious red planet.