Doing so would give a single, defined measure of what equals mass and stop the debate. That kind of accounting won’t stop mass shootings, but accurately weighing the gravity is important.

A bundle of magnets and glass had a slight but detectable gravitational pull, pushing scientists closer to the boundary between classical and quantum physics.

A device that can measure the gravitational force on a particle that weighs less than a grain of pollen could help us understand how gravity works in the quantum world. Despite keeping you stuck ...

Gravity’s strength still an open question after latest measurement Little agreement among measures of Newton's G.

Now, physicists in England and Europe have measured a tiny—but apparent—gravitational pull on a minuscule mass, making it the smallest mass to yet show the signs of gravity, a force that has ...