When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of ...

The parabolic flight travels up and down several times on a trajectory resembling an arch, providing 22 seconds of zero ...

The Gravity's amazing driving dynamics, EV tech and packaging made it an Editor's Choice. But its high price and bugs were a ...

We have long taken it for granted that gravity is one of the basic forces of nature—one of the invisible threads that keeps the universe stitched together. But suppose that this is not true. Suppose ...

Physicists have spent a century trying to reconcile the smooth fabric of spacetime in general relativity with the jittery ...

Researchers have succeeded in measuring the gravitational field of a gold sphere, just 2 mm in diameter, using a highly sensitive pendulum - and thus the smallest gravitational force. The experiment ...