In May 2019, astronomers picked up something strange in the fabric of spacetime. The LIGO and Virgo detectors recorded a gravitational wave that lasted just one-tenth of a second. The signal, known as ...

a short-duration binary black hole (BBH) merger contained no evidence of the inspiral signal typical of these kinds of a gravitational wave events. A new preprint argues that astrophysicists can’t ...

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were ...

Nobel laureate Kip Thorne, who will deliver the Royal Irish Academy 2025 Hamilton Lecture, on his lifelong quest to ...

Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black ...

In some ways, a wormhole might look like a black hole. And the wormhole would look like a sphere, not a hole. Einstein's theory of general relativity allows for the possibility of wormholes, but there ...

A decade ago, scientists first detected ripples in the fabric of space-time, called gravitational waves, from the collision of two black holes. Now, thanks to improved technology and a bit of luck, a ...

Lightning might not strike twice, but black holes apparently do. An international group of researchers led by Tel Aviv University astronomers observed a flare caused when a star falls onto a black ...

This is the first confirmed case of a star that survived an encounter with a supermassive black hole and came back for more. This discovery upends conventional wisdom about such tidal disruption ...

Two black holes in deep space. (The SXS [Simulating eXtreme Spacetimes] Project via LIGO/Caltech) (CN) — A merger of two black holes “ring” in the cosmos, producing ripples in the spacetime continuum, ...