Black Hole

Home News Science & Astronomy A powerful jet streaming from an active galactic black hole that is devouring huge amounts of matter. (Image credit: NASA/JPL-Caltech) For the first time, astronomers have spotted a jet blasting from the core of a distant galaxy that has changed directions. About 1% of the…

When the immense Arecibo radio telescope in Puerto Rico collapsed in 2020, it left gaping holes in astronomy. Now, a team from the California Institute of Technology (Caltech) hopes to address some of the gaps with a very different instrument: a tightly packed array of relatively inexpensive radio dishes that…

In a distant galaxy, a supermassive black hole spewing radiation at near light speed has shifted its angle by a whopping 90 degrees to point directly toward Earth — a sharp turn that's puzzling physicists. Active galactic nuclei (AGN) are the hungry black holes at the cores of many other…

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In 2022 on October 8, an intense pulse of gamma-ray radiation swept through our solar system. The source, dubbed GRB 221009A for its discovery date, turned out to be the brightest gamma-ray burst (GRB) ever recorded. GRB 221009A lasted over 300 seconds. According to astronomers, such “long-duration” GRBs are the…

Home News An artist's impression of a black hole warping space-time around it. Astronomers used this phenomenon, called gravitational lensing, to detect one of the largest black holes ever found in the universe. (Image credit: ESA/Hubble, Digitized Sky Survey, Nick Risinger (skysurvey.org), N. Bartmann) Astronomers have discovered one of the…

On October 9, 2022, an intense pulse of gamma-ray radiation swept through our solar system, overwhelming gamma-ray detectors on numerous orbiting satellites, and sending astronomers on a chase to study the event using the most powerful telescopes in the world. The new source, dubbed GRB 221009A for its discovery date,…

Home News Science & Astronomy Illustration of two black holes orbiting each other, emitting gravitational waves. (Image credit: Mark Garlick/Science Photo Library/Getty Images) When black holes collide and merge to form even more massive black holes, this violent process sends ripples surging through the very fabric of space. A new…

Our universe began with a puzzle. For 100 million years after the big bang, it expanded. Then something strange happened — this expansion suddenly accelerated and has continued to accelerate ever since. Today cosmologists think some kind of pressure must have forced this acceleration, all powered by huge amounts of…