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 .
Three U.S.-trained scientists won the Nobel prize in physics last week . Meg Urry says their findings documented the impact of `` dark energy '' in expanding universe . She says dark energy is a force much more powerful than gravity . Urry : Solving the mystery could have important practical applications .