Nasa used the robot's instruments to analyse the rock, receiving data that indicated it was pure sulphur. Scientists were "stunned", said Nasa when it revealed the discovery last week.

Mars just dropped a surprise golden nugget —literally. Curiosity accidentally cracked open an ordinary-looking rock, only to ...

NASA’s Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock. This finding is considered a significant scientific breakthrough ...