Near Medicine Lake Volcano in California, scientists explore lava caves from both inside and out, working towards a future in which astronauts will be able to detect hidden caves from above ground. The lunar lava caves that have been found so far are much bigger than the largest ones on Earth. This opening in the Moon’s surface measures 65 meters (213 feet) across.
Source: Image Credit: NASA/UMD/Ernie Bell (left) NASA/Arizona State University (right)
Published: June 9, 2021