NASA's Curiosity rover has discovered an abundance of pure sulfur on Mars after it recently drove over a rock and cracked it open, stunning scientists.
The six-wheeled rover has spotted sulfur on Mars before, but only in a mixture with other minerals, including magnesium and calcium. Pure sulfur, an odorless element that forms in very specific conditions that planetary scientists hadn't linked to the rover's location, appears to be infused in many rocks across the region, according to a NASA statement.
