Are we alone in the universe? These Mars rocks could finally give us an answer. - National Geographic

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins of life in our universe—if we can get them back to Earth.The Cheyava Falls sample (sample 25) If youve heard of any Mars rock, its probably the Cheyava Falls sample. In July 2024, Perseverance grabbed a piece of a rock within Jezero Crater that was once e…