(50km-long cave discovered under moon's surface based on observations from the JAXA lunar orbiter.)
Huge Cave Found under Surface of Moon
nippon.com | The Jiji Press [2017.10.19]
An international research team, including the Japan Aerospace Exploration Agency, or JAXA, said Wednesday that it has found a 50-kilometer-long cave under the surface of the moon through a study of observation data from JAXA’s Kaguya (Selene) lunar orbiter launched in 2007.
The cave, located under an area called the Marius Hills, could be a candidate site for a future lunar exploration base because temperatures inside are stable and effects of radiation are limited, according to the team.
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