One place. Three encounters with water.
Perseverance’s rock measurements reveal repeated ancient water activity in Jezero’s Margin Unit. Explore the sequence below.
Water alters volcanic rock
Carbon-dioxide-rich groundwater reacted with olivine, leaving carbonate in fractures.
A possible lake connection
Another interaction may relate to Jezero’s former lake. Silica helps scientists interpret the changes.
Clues to heated groundwater
Mineral veins, including fluorite, point to a later heated-water episode.
An ancient sequence, not water observed today. Scientists can order these episodes but have not established their ages. The globe shows the crater region, not individual sample locations. This discovery does not establish present-day habitability or approve human settlement.