Astronomy:Mars monolith

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Short description: Rectangular boulder discovered on the surface of Mars
The Mars monolith as seen from orbit

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, from which it likely fell.[1][2] The Mars Reconnaissance Orbiter took pictures of it from orbit, roughly 180 miles (300 km) away.[1] The HiRISE camera that was used to photograph the monolith has a resolution of approximately 1 foot or 30 centimeters per pixel.[3]

Around the same time, the Phobos monolith made international news.[4]

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