Crater of eternal darkness

A crater of eternal darkness is a depression on a body in the Solar System within which lies a point that is always in darkness. Such a crater must be located at high latitude (close to a pole), and be on a body with very small axial tilt.

Shackleton Crater as imaged by Earth-based radar is one such crater.

Craters of eternal darkness might be advantageous for space exploration and colonization, as they could potentially preserve sources of water.

See also

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