Sysnova - exploring lunar caves

While the surface of the Moon has been well-documented with cameras on board several satellite missions, relatively little is known about the presence and nature of subsurface cavities. In volcanic areas of the lunar maria, planetary geologists have identified pits that could be related to the collapse of cavities such as lava tubes – where lava once flowed under the lunar surface.

Exploring and mapping these tubes could provide new information about the Moon’s geology, but they could also be an interesting option as long-term shelter for future human visitors to the Moon. They would shield astronauts from cosmic radiation and micrometeorites and possibly provide access to icy water and other resources trapped underground.

Through its Open Space Innovation Platform, in August 2019 ESA opened a Campaign for novel ideas to address detecting, mapping and exploring caves on the Moon.