NASA's Perseverance rover has discovered an ancient river delta buried more than 35 meters beneath the surface of Mars' Jezero Crater using ground-penetrating radar. The finding provides additional evidence that water once flowed on the red planet, potentially creating conditions suitable for ancient life.
The discovery is significant for astrobiology research as river deltas on Earth are known to preserve organic materials and fossils. Perseverance was specifically launched in 2020 to search for signs of ancient life on Mars, making this subsurface delta a compelling target for further investigation.