Cave on the Moon.jpg
By Astrogeology Science Center
June 2022 (approx.)
Detailed Description
The Mare Tranquillitatis, a pit crater on the Moon, captured by the Lunar Reconnaissance Orbiter. North is up. Photo credit: NASA/GSFC/Arizona State University. https://moon.nasa.gov/resources/20/lunar-pits/
Sources/Usage
Public Domain.