What came before Big Bang?

(ScienceDaily): The Big Bang is widely considered to have obliterated any trace of what came before. Now, astrophysicists at the California Institute of Technology (Caltech) think that their new theoretical interpretation of an imprint from the earliest stages of the universe may also shed light on what came before. "It’s no longer completely crazy to ask what happened before the Big Bang," comments Marc Kamionkowski, Caltech’s Robinson Professor of Theoretical Physics and Astrophysics. Go to article