It’s not every day that Hollywood celebrities line up to honor the world’s best scientists, but Sunday night stars of the screen convened at NASA’s Ames Research Center in California to hand out prizes to biologists, physicists and mathematicians. The Breakthrough Prizes are aimed at honoring achievement and fostering general interest in science, with winners chosen by laureates. Gary Ruvkun, professor of genetics at Massachusetts General Hospital, won a Breakthrough Prize in Life Sciences.