Temperature Differentials News Today

>> gretchen is a student at penn state university and is working on the lunar lion, possibly the first privately funded trip to the moon. in fact, shes currently in a space race with over a dozen other private groups, in a competition sponsored by google. >> so in order to win, you have to travel to the moon -- >> yes. >> -- travel at least 500 meters on the moon. >> right. >> send video back to the earth. all by 2016. >> all by 2016. and all on private funding. >> so weve got one rocket firing ...