NASA explores building moon base; Hubble looks for good spots

NASA is studying how to build a moon base where humans can live and work. NASA is using the Hubble telescope to look for locations with a good supply of ilmenite, a mineral containing oxygen, hydrogen and helium. The gases produce air and water and generate electricity when burned. NASA could face a challenge from Dennis Hope, a U.S. entrepreneur who claims ownership of the moon. No government has yet recognized his claim. BBC(8/26)