What could be more familiar than gravity? Drop something and gravity pulls it to the floor, right? And in school we learn that gravity is what guides the moon in orbit around Earth, and Earth in its ...

We don't know what gravity is. Say that to the average person, and the answer you'll probably get is some version of: "What are you talking about? Gravity is the force of attraction that makes things ...

Gravity does a lot more than just keep us on the ground. Turns out, scientists are learning that it's a key factor in how our ...

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Physicists have long suspected that gravity might have a hidden quantum side, but for decades the idea has been more ...

Lots of people, including Einstein (see above), talk about gravity, the restraining force which makes people walk on floors instead of floating in midair. What worries Roger Babson, 74, economic ...

Physicists are using analog black holes to better understand gravity. A0620-00, a binary star system 3300 light-years away, holds a dark secret: One of its stars isn’t a star at all, but a black hole.