Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. If the findings of the new ...

Relax, it’s only happening in theoretical physics—at least for now.

The expansion of the universe may be slowing down rather than accelerating, according to a new study that challenges the Nobel Prize-winning theory of dark energy. “If confirmed, this would have ...