This is a spectacular high-Sun view of the Mare Tranquillitatis pit crater revealing boulders on an otherwise smooth floor. This image from LRO's Narrow Angle Camera is 400 meters (1,312 feet ...
More information: Leonardo Carrer et al, Radar evidence of an accessible cave conduit on the Moon below the Mare Tranquillitatis pit, Nature Astronomy (2024). DOI: 10.1038/s41550-024-02302-y ...
The cave is said to be reachable from an open pit in the Mare Tranquillitatis (Sea of Tranquility). As it is accessible from the surface, it has made the spot a prime location to build a future ...
The large and rather indistinct region to the east of Mare Tranquillitatis is the Mare Fecunditatis (Sea of Fertility). Despite being similar in size to Tranquillitatis, this is a bit harder to ...