moon hole

The Moon's surface is not only many craters but also many holes. According to NASA, the caves that connect these holes may be a haven for future astronauts.

The Moon Reconnaissance Orbiter has captured the most detailed images of two giant holes on the surface of the Moon.

In November 2011, NASA's LRO spacecraft flew through the Aristarchus wormhole of the moon. The photographs showed the diameter of the pit up to 40km and its depth of more than