The ISO sensitivity on today's flagship DSLR cameras is pretty amazing. They are so amazing in fact that for the first time, NASA is able to use Nikon D3 cameras to create night time timelapse videos as the earth sleeps. You've probably seen a bunch of these stunning videos here but now we are able to see who is responsible for capturing the raw images from orbit. Mike Massimino takes you behind the scenes with astronaut/photographer Mike Fossum as he talks about his passion for long exposure photography from space. The audio is pretty rough so use headphones if you have trouble hearing.