The philosophy of logic has no problems with something being self existant. It has tremendous problems with something coming form nothing. (say for example a universe) not that logic matters when discussing science.
This will depend on you definition of "nothing" (and I don't mean to sound like some Clinton smartass about what "is is"). The nothingness of outer space isn't. You can't make the assumption that the universe was created out of nothing -- well, you can make it, but it may not be true. We're at no level of knowledge to discern where the universe came from. Even if we agreed that there was a Big Bang, that doesn't mean that what preceeded it was nothingness, even if we could agree on what nothingness is, which we probably can't. Now, if we can just move on from the trival 8~)