The longest-running project in NASA’s history has completed its mission. Gravity Probe B has finally confirmed that the Earth drags spacetime around as it rotates like a spoon twisting in a jar of ...

Light from a distant galaxy becomes warped as it travels through space-time gravitationally curving around a foreground ...

Newton’s Law of Gravity just survived its biggest cosmic test. Scientists studied nearly 686,000 galaxies spread across 7 ...

After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest numbers to nail down.

Defy gravity with this fun experiment using only a plastic bottle, a ping pong ball, and water. PLEASE follow these safety precautions when doing any science experiment. • ALWAYS have an adult present ...

A 10-year effort to measure gravity, a fundamental force in the universe, has failed to come up with a conclusive answer.

As far as we know, our physical world is governed by four fundamental forces: electromagnetism, weak and strong nuclear forces, and gravity. Apart from playing with bar magnets or marveling at the ...

From reverse waterfalls to gravity-defying hills, some places on Earth seem to challenge physics. These strange spots attract ...