Three U.S.-trained scientists won the Nobel prize in Physics last year . At the same time , it 's relatively easy to explain to nonspecialists . Meg Urry says their findings reveal the impact of ` ` dark energy '' in the universe . She says dark energy is a force much more powerful than gravity . Urry : ... the mystery could have important practical applications .
Three U.S.-trained scientists won the Nobel prize in Physics last year . Meg Urry says their findings reveal the impact of ` ` dark energy '' in the universe . She says dark energy is a force much more powerful than gravity . Urry : ... the mystery could have important practical applications .