An international collaboration of physicists including researchers at Washington University in St. Louis has made ...

Last week, four lasers were projected into the sky above the European Southern Observatory (ESO) Paranal site in Chile. The ...

Last week, four lasers were projected into the skies above the European Southern Observatory’s (ESO’s) Paranal site in Chile.

A radio image of two black holes orbiting each other in Quasar OJ287. The light comes from the glowing gas surrounding the black holes and the particle jets being emitted. Valtonen, Mauri et al., The ...

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Astronomers had long suspected that certain quasars—those brilliant, otherworldly light sources fueled by supermassive black holes—could harbor two black holes rather than one. That theory, long ...

Here’s what you’ll learn when you read this story: In May of 2019, a short-duration binary black hole (BBH) merger contained no evidence of the inspiral signal typical of these kinds of a ...

In a recent piece for my column The Universe, I wrote about the biggest black holes in the cosmos. These can tip the scales at many billions of times the sun’s mass, outweighing even entire galaxies.

Patricia Schmidt receives funding from UK Research and Innovation (UKRI) through grants ST/V005677/1 and ST/Y00423X/1, and The Royal Society through a Research Grant RG\R1\241327. Geraint Pratten is ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

A strange signal in the background hum created by a merger between two black holes could be the first ever detection of a system of three stellar-mass black holes locked in a gravitational waltz.

Binary black hole systems are turning out to produce some of the most important data in modern astronomy. Credit: NASA's Goddard Space Flight Center A new study in the scientific journal Nuclear ...