#PPOD: NASA's Perseverance rover stumbled into this very cool rock at Jezero crater. Hopefully, the instrument analysis will tell us more soon. Some mineralization and cementation are visible, in what look to be cycles in lake sediment deposition. As for what almost looks like micro-prisms, they could possibly be an ancient network of desiccation cracks. Share your thoughts in the comments! Credit: NASA/JPL-Caltech/ASU/S Atkinson