Astronaut Garrett Reisman on the Colbert Report again (this time on Earth)

Stephen Colbert had an interview with astronaut Garrett Reisman when he was on the International Space Station in May, and now that he's back on Earth he came to the show in person as a guest. You can tell when Stephen Colbert really likes a guest because he only puts in a modicum of effort into being the Stephen Colbert character and spends the rest of the time trying to ask as many questions as possible within the time allotted. Here's the video: