jbishop-martian-minerals-picture2-final (IMAGE)

SETI Institute

jbishop-martian-minerals-picture2-final

Caption

Figure 2 Evidence of unusual geochemical activity on ancient Mars. Perseverance rover image of reddish clay-rich mudstone containing mm-sized green specks termed Poppy Seeds and slightly larger green and light-toned blobs termed Leopard Spots (after Hurowitz et al., 2025). Analyses by instruments onboard Perseverance revealed the tiny green nodules to be the mineral vivianite, while the light-toned material is iron sulfide.

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M. Parente

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