Gamma-ray bursters as a research area focuses on the astrophysical study of gamma-ray bursts (GRBs), extremely energetic transient events observed in gamma-ray wavelengths. This field investigates the progenitors (such as massive stellar collapse and compact object mergers), relativistic jet formation, radiation mechanisms (synchrotron, inverse Compton, photospheric emission), and afterglow evolution across the electromagnetic spectrum. Research integrates high-energy astrophysics, relativistic hydrodynamics, nuclear physics, and cosmology, using space-based gamma-ray observatories, rapid follow-up at other wavelengths, and numerical simulations to constrain GRB energetics, beaming, host environments, and their role as probes of star formation, the interstellar/intergalactic medium, and the high-redshift universe.
Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front plows into its surrounding ...
Astronomy
10 hours ago
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Researchers from the Yunnan Observatories of the Chinese Academy of Sciences have conducted a new study on the temporal evolution of the afterglow from gamma-ray burst GRB 240825A. The study offers new evidence to better ...
Astronomy
Feb 12, 2026
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On July 2, 2025, the China-led Einstein Probe (EP) space telescope detected an exceptionally bright X-ray source whose brightness varied rapidly during a routine sky survey. Its unusual signal immediately set it apart from ...
Astronomy
Feb 10, 2026
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A supermassive black hole with a case of cosmic indigestion has been burping out the remains of a shredded star for four years—and it's still going strong, new research led by a University of Oregon astrophysicist shows.
Astronomy
Feb 5, 2026
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Cosmic radio pulses repeating every few minutes or hours, known as long-period transients, have puzzled astronomers since their discovery in 2022. Our new study, published in Nature Astronomy today, might finally add some ...
Astronomy
Jan 30, 2026
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Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of these bursts are observed to flash and fade within a few seconds to minutes. But on 2 July 2025, ...
Astronomy
Dec 26, 2025
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Prof. An Tao from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences has proposed a novel "precessing magnetic jet engine" model to explain the peculiar gamma-ray burst (GRB) 250702B, a rare cosmic ...
Astronomy
Dec 19, 2025
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Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it pinpointed a single star in a galaxy when the universe was only about 730 million years old. It wasn't ...
Astronomy
Dec 10, 2025
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A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary cosmic outburst this July which likely heralds a new kind of stellar explosion. With a flood of data ...
Astronomy
Dec 10, 2025
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Gamma-ray bursts (GRB) are some of the most perplexing phenomena in nature. Even though astronomers have detected about 15,000 of them, with a new one each day, they're still mysterious. They're the most luminous, energetic ...
Astronomy
Dec 10, 2025
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