Hubble's last act

Wednesday - 5/13/2009, 9:18am EDT

John Herrington

Download mp3

Space Shuttle Atlantis blasted off earlier this week on its final trip to the Hubble Space Telescope. Commander John Herrington is a former NASA astronaut. He got a behind-the-scenes look at preparations for the Hubble mission. That story will be featured in the new National Geographic Channel special, "Inside Hubble's Final Mission." Commander Herrington joins us with a preview.