Neil DeGrasse Tyson—one of my favorite space people—was interviewed by MSNBC's Martin Bashir about Newt Gingrich's moon base plan by 2020. The short version: Newt got it wrong. The long version: watch the video.
I want the world to have a permanent base on the Moon. It will be great for the United States and humanity as a whole. Just setting up a liquid space telescope—hundreds of times more powerful than any telescope ever created—would justify it. The things we would learn as species would push civilization forward in a way we never imagined before.