The gravitational constant G determines the strength of gravity—the force that makes apples fall to the ground or pulls the Earth in its orbit around the sun. It is part of Isaac Newton's law of ...

With his theory of General Relativity in 1915, Albert Einstein revolutionized how we think about our universe. Rather than the cosmos simply providing the room for the planets and stars to orbit each ...

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Add Yahoo as a preferred source to see more of our stories on Google. The cosmic microwave background, the faint afterglow of the Big Bang that fills all of space, passes through massive galaxy ...

For more than a century, physicists have been trying to reconcile the smooth geometry of gravity with the jittery probabilities of quantum mechanics, and for most of that time the problem has looked ...

Dr Charles Buhler takes people through his lab in a new video. He explains more about how they developed and detected a new force from large electrostatic pressure differences. They claim this force ...

Gravity behaves predictably in your daily life. Drop a ball, and it falls. Planets loop around stars. On paper, the same rules should also govern matter spread across the universe. But the farther ...