Mars monolith

Crop of HiRISE PSP_009342_1725
(-7.2S, 267.4 E)

The Mars monolith is a rectangular object (possibly a boulder) discovered on the surface of Mars.[1] It is located near the bottom of a cliff, which it likely fell from in the past.[1][2] The Mars Reconnaissance Orbiter took pictures of it from orbit, roughly 180 miles (300 km) away.[1] It is estimated to measure about 5 meters wide.[3]

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References

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