Strike a bell, and it rings with a pitch and a fading that tell you about the bell: its size, its shape, the metal it is made of. Black holes ring too. When two merge, the newborn black hole shivers ...

A researcher from Sejong University has used a new theory of gravity proposed by Erik Verlinde to predict the observed ...

The mysterious Gravity Falls website has returned with a strange update, featuring new countdown sounds and fresh clues connected to The Art of Gravity Falls.

NASA’s Nancy Grace Roman Space Telescope launched on Aug. 30, 2026, beginning a journey that will take it about a million ...

Physicists have put a decades-old idea about why the strange rules of quantum mechanics disappear in our everyday world to ...

A new experiment found that a falling quantum wave behaves just as Einstein’s equivalence principle predicts. The result ...

Ever since Newton published his universal law of gravitation in 1687, anyone with a slide rule and a half decent education could calculate the force of gravity on a falling body or a planet in orbit.

The universality of free fall, a cornerstone of Einstein’s theory of gravity, has so far only been tested with neutral composite states of first-generation standard model particles, such as atoms, ...

Something is seriously wrong with gravity, and nobody's quite sure why. The problem is that gravity is too weak. Out of the four fundamental physical forces in the universe—gravity, electromagnetism, ...