WELL, THIS IS PROMISING:

A hole on the Moon just turned out to be the front door to a 50 km tunnel.

Japan’s Kaguya orbiter first spotted it. A pit about 50 metres wide and 50 metres deep, sitting in the Marius Hills on the Moon’s near side.

Then JAXA pointed the probe’s radar underground. The echoes… pic.twitter.com/tjm4uVTihn

— For all Curious (@fascinatingonX) October 21, 2026

Getting back to the Moon first means a lot more than just prestige.