The NASA article appears at "Down the Lunar Rabbit-Hole" with Alice, the Mad Hatter, and the White Rabbit.
See images of some of these holes and caverns on the before-mentioned July 12, 2010 NASA Science article.
These caverns were first hypothesized back in the 1960s when the United States was exploring the Moon for its manned Apollo missions.
One such hole'”a pit within the Marius Hills on the Moon'”is described by NASA as 'big enough to fit the White House completely inside.'
Now that NASA has proven that these tunnels and caverns exist under the Moon, the U.S. space agency wants to explore them.
Dr. Mark Robinson, from Arizona State University and a LRO principal investigator, states, "They could be entrances to a geologic wonderland. We believe the giant holes are skylights that formed when the ceilings of underground lava tubes collapsed."
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