Perseverance rover finds even more signs of extinct life on Mars (opens original article in a new tab)

The Perseverance rover detected signs of macromolecular carbon in a Martian rock, adding to evidence that ancient Mars may have been habitable, though scientists stress the need for sample return to confirm findings.

• Perseverance rover found macromolecular carbon (MMC) in Martian rock Cheyava Falls
• Scientists emphasize need for sample return to Earth to confirm potential signs of ancient life
• MMC findings align with previous discoveries in Gale Crater, but non-biological explanations remain possible