NASA’s Perseverance Rover Discovers Mysterious Green Spots on Martian Rocks

NASA’s Perseverance rover has spotted unusual greenish patches within red rocks on Mars. Nearing its fourth year on Mars, the rover uncovered the enigmatic spots during an analysis at a site named “Serpentine Rapids” in Jezero Crater, where it used an abrasion tool on a rock formation called “Wallace Butte.” The result revealed a combination of green, black, and white spots, with the green tint particularly intriguing due to its potential links to ancient water activity.

On Earth, green spots in red rocks often form when water flows through sediment, triggering chemical reactions that reduce oxidized iron, creating a green hue. Microbial life can sometimes play a role in this process, though it can also occur without biological input through sulfur and iron interactions.

While the Perseverance team couldn’t place its instruments close enough to examine the spot’s exact composition, they’re hopeful future samples might unlock further clues about Mars’ watery past and potential for life.