Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets. It's not that sulfur is a great indication that a planet is inhabited. Instead, ...

Nasa's Mars rover has made its "most unexpected" discovery since it landed on the red planet in 2012: rocks made of sulphur. On 30 May, the Curiosity rover "happened to drive over a rock and crack ...

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior. When the rover rolled its 899-kilogram (1,982-pound) body over the rock in ...