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A deep hole on the moon that could open into a vast underground tunnel has been found for the first time. The discovery strengthens evidence for subsurface, lava-carved channels that could shield future human colonists from space radiation and other hazards.
The moon seems to possess long, winding tunnels called lava tubes that are similar to structures seen on Earth. They are created when the top of a stream of molten rock solidifies and the lava inside drains away, leaving a hollow tube of rock.
Originally posted by MysterE
reply to post by Aggie Man
Good pic! To me it looks like some serious NASA photoshopping.
P.S. I'ts going to be fun watching my Horns put a hurtin on your Aggies this year!
[edit on 23-10-2009 by MysterE]