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Japan’s Kaguya (SELENE) orbiter confirmed the existence of a massive underground cave, or lava tube, on the Moon in 2017, following its initial discovery of a vertical pit (skylight) in 2009. Located in the Marius Hills region, the cave is roughly 50 km (31 miles) long and 100 meters wide, offering potential shelter for future lunar bases
Its tube shaped, parallel to the surface. Not just the hole in the picture
oh ok I understand now. Cheers