What do you do with a moon rock? 'Give it back to NASA'

This April 23, 2012, photo shows a piece of rock that Rafael Navarro, a former Colombian toy manufacturer, contends came from the moon, in Buffalo, Texas. Navarro has placed rock fragments in the accompanying small plastic box for sale on eBay and is seeking $300,000 for them. Joe�Gutheinz, a former investigator for NASA who practices law outside Houston, is investigating this claim as he hunts for moon rocks, now-missing samples collected by the dozen American astronauts who walked on the lunar surface between 1969 and 1972. (AP Photo/Michael Graczyk)