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, ...

In 1916, Albert Einstein predicted the existence of gravitational waves when he proposed his theory of general relativity. Einstein figured that any object with mass creates a kind of signal, rippling ...

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 ...

How are controversial ideas handled by modern science? A common charge leveled against science (generally by those who are unhappy with its conclusions) is that the only way to get funding or continue ...

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.

We tend to think of gravity as something constant. It’s just… there. Same everywhere, doing its job. But that’s not entirely true. There’s a region around Hudson Bay, Canada, where gravity is actually ...

You might expect that, all these years after Newton, we might have a good measure of his gravitational constant, G. As the authors of a new paper on the topic note, there are plenty of reasons to want ...

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 ...