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Back Surface features on Mars suggest the existence of water

Surface features on Mars suggest the existence of water


Copyright: LPL / NASA

'Rootless cones' on Mars, seen in this image from the Mars Orbiter Camera, suggest the existence of near-surface groundwater or ice, as the cones form when water or ice interacts explosively with surface lava.
Last Update: 1 September 2019
21-Apr-2026 08:25 UT

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