Perseverance unveils 'Lac de Charmes' on Mars, a 4‑billion‑year window
NASA's Perseverance rover is drilling into Lac de Charmes, a 4 billion‑year‑old site on Mars' Jezero Crater rim, revealing ancient rocks that could rewrite the planet's geological story; the rover has already created a sample‑processing area and was recorded grinding a rock on September 27 2021 – a discovery that may unlock clues about early Martian climate and habitability, and could pave the way for future sample‑return missions.