NASA’sPerseverance rover has identified microscopic grains of corundum, the mineral that forms rubies and sapphires, inside rocks on Mars. The discovery was made using laser-based analysis and marks ...

New research suggests Mars may have remained habitable much longer than scientists once thought. Ancient sand dunes in Gale Crater appear to have been soaked by underground water billions of years ago ...

Something weird is happening on Mars. What scientists believed was a totally dead, frozen world may actually be hiding a vast underground reservoir of liquid water. The discovery rewrites decades of ...