Centuries before anyone pointed a telescope at the sky, Isaac Newton figured out how gravity works. He showed that any object with mass pulls on every other object—a result that explained falling ...

Black holes can lose mass and energy over time. They release Hawking radiation. The smaller they are, the more radiation they emit, so the hotter they get. The end scenario is the black holes ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of a supermassive black hole merging with a smaller black hole. Such interactions ...