Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...

NASA announced this week that rocks made of pure sulfur have been discovered on the Red Planet. The yellow sulfur crystals in a pure form have never been seen before on Mars. Earlier findings have ...

NASA’s Curiosity Mars rover inadvertently crushed a rock while exploring a sulfates-rich area — and revealed a treasure of glinting, yellow crystals. And according to the space agency, it’s unlike ...

The 2021 volcanic blast in the Canary Islands entombed more than 2,800 buildings in lava and ash. Now scientists are searching for clues to understand what made La Palma’s first eruption in 50 years ...