A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

When NASA’s Curiosity rover ran over a rock on Mars, crushing it with its tires, the incident revealed an abundance of super rare sulfur crystals. The yellow crystals have never been seen on the ...

Curiosity, NASA's Mars rover, accidentally cracked open a seemingly ordinary rock, revealing an unexpected yellow substance ...

The latest discovery by the 12-year-old rover was pure sulfur crystals hidden in the Gediz Vallis, with the area filled with it, and researchers looking to uncover more of what it means.

NASA scientists say pure sulfur has been found on Mars for the first time after the Curiosity rover inadvertently uncovered a cluster of yellow crystals when it drove over a rock. And it looks ...

The crystals are pure sulfur, a first-time find on Mars. While researchers are intrigued, it is not fully known why it formed in this region.

The yellow sulfur crystals in a pure form have never been seen before on Mars. Earlier findings have been sulfur-based minerals, or a mixture of sulfur and other materials, according to NASA.

The yellow sulfur crystals in a pure form have never been seen before on Mars. Earlier findings have been sulfur-based minerals, or a mixture of sulfur and other materials, according to NASA.

Yellow sulfur crystals revealed after NASA’s Curiosity cracked open a rock. Inset: a stock image of Mars. It’s the first time this kind of sulfur has been found on Mars.

The yellow sulfur crystals in a pure form have never been seen before on Mars. Earlier findings have been sulfur-based minerals, or a mixture of sulfur and other materials, according to NASA.

The yellow sulfur crystals in a pure form have never been seen before on Mars. Earlier findings have been sulfur-based minerals, or a mixture of sulfur and other materials, according to NASA.