Scientists have recently confirmed the discovery of a significant cave on the Moon.
This cave, located in the Sea of Tranquility, is approximately 250 miles (400 kilometres) from the historic Apollo 11 landing site in 1969.
The cave, estimated to be around 100 metres long, features a skylight opening towards the moon's surface, suggesting possible further underground extensions.
Despite its depth, the cave's scale makes it visible from Earth without specialised equipment.
The Moon is exposed to solar radiation 150 times stronger than Earth.
NASA stating that the lunar surface heats to about 127 degrees Celsius during the day, and cools to around -173 degrees Celsius at night.
But the cave harbour stable average temperatures of around 17 degrees Celsius.