It's Alive! There's Magma on the Moon

It's Alive! There's Magma on the Moon : Discovery News:

'via Blog this'

The moon's crust was apparently active far more recently than previously believed, scientists say.

Although the Earth's crust is still shifting, driven by the churning semimolten rock underneath it, researchers had thought the moon had cooled off much too long ago to still have any such tectonic activity. For instance, the youngest known tectonic features on the lunar landscape until now -- small cliffs in the lunar highlands resulting from wrinkling of the surface as the moon's interior cooled and shrunk — are thought to be less than 1 billion years old, although by how much is uncertain.