Public domain
Mars Underground Exposed: The Central Peak of Alga Crater
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
The most habitable places on Mars now and in the past are underground, where water is or was much more stable than at the surface and protected from energetic particle radiation. Large impact craters have central rebounds that uplift buried strata from miles below the surface. Often these central uplifts reveal colorful rocks with diverse minerals, including ones altered by prolonged contact with water.
NASA Image and Video Library’s own descriptionCredit lineMars Underground Exposed: The Central Peak of Alga Crater. NASA/JPL, 2019-09-19. Public domain. ID: PIA23479.
