It’s interesting that even some of the folks at Think Progress like some of Newt’s SF policy. I don’t think this is as wonderful a weapon against him as Romney seems to. Speaking of which, he doubled down yesterday:

That article also includes a clip of a video interview with Romney on Monday where the former Massachusetts governor again raised the issue when asked about differences between himself and Gingrich. “The idea of a lunar colony? I think that’s going to be a problem in the general election,” Romney said about two and a half minutes into the clip. “So you’re suggesting he’s a little nutty?” asked POLITICO’s Mike Allen. “I’m suggesting he has differing views than I do on very important issues,” Romney responded, but later added, “I’m not going to characterize the Speaker’s views on science.”

Emphasis mine. That Romney thinks that this discussion is about science just demonstrates how completely out to sea he is on the topic. One of his advisers really needs to explain things to him. He’s going to turn off a lot of people needlessly, and probably already has.