You don't want to come out with anything that's wrong, of course, in a scientific, you know, a major scientific announcement, and so you're being so careful trying to check, well maybe it's this, maybe it's that, you're looking at every possible thing.

Schmidt. The advertisement showed his passion for the study of the cosmos at even a very young age. Saul Perlmutter (born September 22 1959) is an American astrophysicist at the Lawrence Berkeley National Laboratory and a professor of physics at the University of California Berkeley.

Schmidt and Adam Riess for providing evidence that the expansion of the universe is accelerating. He is also a member of the National Academy of Sciences.