Black holes as a research area encompass the theoretical, observational, and computational study of regions of spacetime where gravity is so intense that no matter or radiation can escape beyond the event horizon. This field investigates black hole formation, stability, and classification (stellar-mass, intermediate-mass, and supermassive), their thermodynamics, accretion physics, jet launching, and role in galaxy evolution. It also includes tests of general relativity in the strong-field regime, gravitational-wave signatures from black hole mergers, numerical relativity simulations, and horizon-scale imaging, integrating methods from relativistic astrophysics, high-energy physics, and computational modeling.
An international collaboration of physicists including researchers at Washington University in St. Louis has made measurements to better understand how matter falls into black holes and how enormous amounts of energy and ...
Astronomy
Nov 17, 2025
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In 2023, astronomers detected a huge collision. Two unprecedentedly massive black holes had crashed an estimated 7 billion light-years away. The enormous masses and extreme spins of the black holes puzzled astronomers. Black ...
Astronomy
Nov 10, 2025
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For obvious reasons, we do not know what the inside of a black hole looks like. But thanks to theoretical physics, we can ask what the inside should look like if Einstein's theory of gravity and the rules of quantum mechanics ...
Black holes are considered cosmic gluttons, from which not even light can escape. That is also why the images of black holes at the center of the galaxy M87 and our Milky Way, published a few years ago by the Event Horizon ...
Astronomy
Nov 5, 2025
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The most massive stars in the universe are destined to explode as brilliant supernova before collapsing into black holes. Yet one huge star appears to have never fulfilled its destiny; in a twist of irony, the star wandered ...
Astronomy
Nov 4, 2025
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A few days ago, I wrote about non-singular black hole models, specifically one known as the Hayward model. Since its introduction in 2006, several variations of the Hayward model have been introduced, including a rotating ...
Astronomy
Nov 3, 2025
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Whenever someone talks about black holes, they almost always talk about the event horizon and the singularity. After all, that's what defines a black hole, right? Well, it depends on what you mean by black hole. There are ...
Astronomy
Nov 3, 2025
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In a paper published in The Astrophysical Journal Letters, the international LIGO-Virgo-KAGRA Collaboration reports on the detection of two gravitational wave events in October and November of 2024 with unusual black hole ...
Astronomy
Oct 28, 2025
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On July 2, 2025, NASA's Fermi Gamma-ray Burst Monitor (Fermi-GBM) captured around three hours' worth of signals that appeared to come from the same source. When scientists compiled this data with signals picked up by multiple ...
Pulsars suggest that ultra–low-frequency gravitational waves are rippling through the cosmos. The signal seen by international pulsar timing array collaborations in 2023 could come from a stochastic gravitational-wave background—the ...
Astronomy
Oct 15, 2025
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