NASA Perseverance rover uncovers 3.9‑billion‑year‑old impact record on Mars

NASA's Perseverance rover identified a 3.9‑billion‑year‑old impact structure on Mars, providing evidence of a massive ancient collision that shaped the planet’s early surface.

In a separate study, Perseverance’s Planetary Instrument for X‑ray Lithochemistry detected manganese‑rich minerals in Jezero crater’s Máaz formation. Researchers reported the presence of the rare mineral despujolsite in the Guillaumes abrasion and Mn‑enriched magnetite associated with calcium‑dominant sulfates in the Alfalfa abrasion, suggesting multiple aqueous episodes, serpentinization, and exposure to oxidizing acidic fluids. These findings enhance understanding of Mars’ past water activity and habitability, and they inform upcoming sample‑return missions.