Perseverance Rover Finds Promising Signs of Life on MarsOn Wednesday, Sept. 10, NASA announced that rocks collected from the “Sapphire Canyon” site on Mars show striking patterns that may point to ancient biological activity. The Perseverance rover gathered these samples in July 2024 from a location believed to be the remains of a prehistoric lake. Clues to Possible LifeIf these formations were created by microbial processes similar to those found on Earth, they could provide strong evidence of life once existing on Mars. “We handed the data to our colleagues to test under pressure and to ask: Do we believe these are signs of ancient life on Mars?” said NASA’s acting administrator Sean Duffy. On Earth, vivianite is commonly found in sediments, peat bogs, and around decaying organic matter, while greigite can be produced by certain microbial life forms.