Right now, twenty-six groups of scientists, engineers and students from around the world are competing to be the first non-government team to get a rover on the moon by 2015. In this month's issue of Scientific American, Michael Belfiore explores what the Google Lunar X PRIZE competition means for the future of private spaceflight and tells the story of one of the most impressive teams - team Astrobotic. In this Web Exclusive, take a behind-the-scenes look at Astrobotic's preparations for a trip to the moon.

» View the X-Prize Slide Show