The size and spin of black holes can reveal how they are formed and where they were born. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

The universe is expanding; we’ve had evidence of that for about a century. But just how quickly celestial objects are receding from each other is still up for debate. It’s no small feat to measure the ...

"The detection of this signal has the potential to reveal what neutron stars are made of." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

NASAs four Magnetospheric Multiscale, or MMS, satellites at the Astrotech Space Operations facility in Titusville, Florida, March 2015. (NASA via AP) (Uncredited) NEW YORK – Scientists have detected ...

At the start of my career, I used to do acoustic testing in an anechoic chamber where sound is not reflected as it gets absorbed. But the quietness of these chambers always got me thinking of how ...

The universe is humming with gravitational radiation — a very low-frequency rumble that rhythmically stretches and compresses spacetime and the matter embedded in it. That is the conclusion of several ...

NEW YORK (AP) — Scientists have detected cosmic waves that sound like birds chirping in an unexpected place. These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing.