A couple weeks ago, I wrote about the Hubble 3D movie and posted some of the amazing space photos taken by the telescope. Really, truly, amazing photos. If you haven't seen them, you should go look. Well, I also promised that a real live astronaut would be willing to answer your questions, and now I am keeping that promise! or, rather, NASA Astronaut Scott Altman is. Now you can find out once and for all what it feels like to be in space, how astronauts go to the bathroom, and how to become an astronaut yourself. Read on. . .