A study published in Geophysical Research Letters confirms the existence of a large open lava tube in the Marius Hills region of the moon, which could be used to protect astronauts from hazardous conditions on the surface.
No one has ever been on the moon longer than three days, largely because space suits alone can't shield astronauts from its elements: extreme temperature variation, radiation, and meteorite impacts. Unlike Earth, the moon has no atmosphere or magnetic field to protects its inhabitants.
The safest place to seek shelter is the inside of an intact lava tube, according to the study.
Provided it's not already occupied. ;-) To read more, click here.