The Significance of Large Grains on Mars, According to NASA.

NASA's Perseverance rover has discovered large grains on Mars that are believed to be volcanic in origin. The rover's SuperCam instrument has been used to analyze the grains, which are up to 2 cm in size, and could provide insights into the planet's geologic history. Additionally, the rover's MOXIE instrument has successfully produced oxygen from the Martian atmosphere, a crucial step towards future human exploration of the planet.