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 ...

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 ...

Now, a new Nature Astronomy study has revealed exactly what lies beyond the entrance of one of one such pit, located in the Mare Tranquillitatis region of the lunar surface. The data at the heart ...

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 ...