 Yeah, so that was the second Mercury flight with an astronaut in it, and he came back. And at this point, it appears that the hatch blew spontaneously. It was the first hatch of the explosive bolts, you know, in case the astronaut had to get out in a hurry. It was long suspected that he might have done it by accident, but I think the last report I read, and, of course, a lot of guests were involved, said that it blew because of an electrical fault.