A long narrow depression on the surface of the Moon or other planetary bodies. It resembles a channel and is thought to be caused by collapsed lava flows just under the surface.
The Apollo 15 mission landed at Hadley Rille in the Lunar Apennines.
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A long narrow depression on the surface of the Moon or other planetary bodies. It resembles a channel and is thought to be caused by collapsed lava flows just under the surface.
The Apollo 15 mission landed at Hadley Rille in the Lunar Apennines.