The Earth rotates at about 1,670 kilometers per hour at the equator, yet we experience no sense of motion. But how is this ...

Zero gravity, often depicted in science fiction and space documentaries, is a fascinating concept that sparks curiosity and ...

Drag (air resistance) opposes acceleration due to gravity. In a vacuum, such as on the Moon, both objects will hit the ground at the same time. How does gravity work?

A new quantum recipe for black holes could be the first step toward a theory of "quantum gravity", the "holy grail" of ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...

With a planned capacity of 1,900 g-t (gravity acceleration multiplied by tonnes), it will outclass existing facilities, including the U.S. Army Corps’ hypergravity machine with its 1,200 g-t ...