SpaceQuartz crystals on Mars could preserve signs of ancient life NASA’s Perseverance rover found large crystals of quartz with a high purity on Mars, which probably had to have formed in the presence of hot water News
SpaceMeteorite crystals show evidence of hot water on ancient Mars A rock that formed around 4.5 billion years ago on Mars before being blasted into space by a meteor strike and making its way to Earth contains telltale evidence that it was formed in the presence of hot water News