The best way to find buried treasure may be with a quantum gravity sensor. In these devices, free-falling atoms reveal subtle variations in Earth’s gravitational pull at different places. Those ...

In the April 1981 issue of Popular Science, we explored the many initiatives and techniques used in the exciting hunt for sensing gravity waves, then out of reach. By Bill Gourgey Published May 18, ...

Purists insist that the spacetime ripples just discovered by the Advanced LIGO observatories should be called “gravitational” waves. Which in itself is just a shorthand way of saying radiation of ...

After more than 15 productive years in orbit, the U.S./German GRACE (Gravity Recovery and Climate Experiment) satellite mission has ended science operations. After more than 15 productive years in ...

Gravity is tough. It took Newton a long time to crack it and a lot of Newtonian physicists a hundred years to confirm Einstein’s gravitational theories. And that’s the naturally occurring stuff.