The 2011 Nobel Prize in physics goes to astrophysicist Saul Perlmutter, 52, a graduate of Germantown Friends School who grew up in Mt. Airy and now works at the U.S. Department of Energy's Lawrence Berkeley National Laboratory. He is one of three men who upended our view of the heavens by discovering that the universe, rather than continuing to slow down after the Big Bang, is now speeding up as it expands - due to a still-mysterious force that has been dubbed dark energy. Perlmutter attended  a Folkshul in ____________, called ____________, just before it merged with our Folkshul. His sister, Tova, graduated from our Folkshul. Mazel Tov to Fayge and Dan Perlmutter, Saul’s parents.