Old Apollo rocks are providing a fresh take on the moon's magnetic field. The lunar magnetic field is currently weak or even nonexistent, but cranked up to superstrength for short snippets of time more than a billion years ago.

That's one small step for a man. One very expensive leap for the United States. Okay, sure, some would argue focusing on the total cost of the Apollo program defeats the purpose. Stepping onto the lunar surface was a remarkable endeavor with no arguments there