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Explanation: What caused this unusual looking crater floor on Mars? Appearing at first glance to resemble the human brain, the natural phenomena that created the unusual texture on the floor of this Martian impact crater are currently under investigation. The light colored region surrounding the brain-textured region is likely sand dunes sculpted by winds. The Mars Global Surveyor robot spacecraft that has been orbiting Mars since 1997 took the above image. Meanwhile, down on the surface, robots Spirit and Opportunity continue to roll, inspecting landscape, rocks, and soil for clues to the ancient watery past of the red planet. Humorously, this brain-terrain on Mars spans about a kilometer, making it just about the right size to fit inside the rock formation once dubbed the Face on Mars.
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: Mars - sand dunes
Publications with words: Mars - sand dunes
See also:
- APOD: 2025 July 15 Á Collapse in Hebes Chasma on Mars
- APOD: 2025 July 6 Á The Spiral North Pole of Mars
- APOD: 2025 June 29 Á Dark Sand Cascades on Mars
- APOD: 2025 June 22 Á A Berry Bowl of Martian Spherules
- APOD: 2025 June 15 Á Two Worlds One Sun
- Perseverance Selfie with Ingenuity
- Deimos Before Sunrise