It was around 2005 that Simon Payne started hearing it. A strange, low, rumbling sound that travels through walls and floors and seems to come from everywhere. At first, he was convinced the noise was ...

In June, a new era in astronomy began with the apparent discovery of low-frequency gravitational waves, the ambient hum of spacetime ripples pervading the universe. That announcement came from a huge ...

The Arecibo Observatory in Puerto Rico, one of the radio telescopes used to detect the pulses from pulsars in the new research. The telescope started to fall apart in 2020 and was decommisioned.

You may have heard it when flipping on a light, switching on your TV or walking near power lines — that unmistakable hum of electricity. But what, exactly, is that hum? And more important, is it ever ...

Have a song stuck in your head but don't know who sings it? If you have YouTube Music on Android, you can now hum a few bars, and the app will (hopefully) identify it ...