US EditionScientists are baffled by a powerful and long-lasting gamma ray explosion outside our galaxy
- On September 9, 2025, scientists observed an exceptionally intense and long-lasting burst of gamma rays originating from a galaxy beyond the Milky Way, captured by ESO's Very Large Telescope.
- The explosion repeated several times over about a day, an unusual pattern since such bursts typically last milliseconds to minutes.
- A European-led team announced in August in the Astrophysical Journal Letters that the event is unlike any seen in 50 years of gamma ray burst observations.
- Dr. Martin-Carrillo explained that this phenomenon puzzled researchers because it exhibited strong bursts multiple times and appeared to follow a regular timing pattern, an observation never recorded before.
- The discovery suggests a new type of gamma ray burst whose cause remains unknown, with further observations needed to understand its source and true energy.
81 Articles
81 Articles
Astronomers have detected over one day a follow-up of gamma rays (GRB), the most powerful explosions in the universe, coming from one source, a phenomenon that has never been observed and which no scenario can explain, according to a report issued by the Australian Observatory (ESO).
Astronomers discover repeating gamma-ray burst 'unlike anything we have ever witnessed before'
A newly discovered gamma-ray burst is unlike any seen before, repeating over the course of a day rather than erupting in milliseconds, leaving astronomers perplexed by its origins.
An unusually long and repetitive gamma burst was observed a few billion light years from our Solar System.
Gamma-ray bursts (GRBs) are one of the most violent explosions in the universe. GRBs are often a direct consequence of the catastrophic destruction of stars that die in powerful explosions or are shattered by black holes. They usually last from milliseconds to minutes, except that a milestone has taken place that has never been seen to date. A mysterious GRB, captured several times throughout the day, whose duration has extended for approximatel…
Was an atypical star "scattered" by an unusual black hole? Researchers are puzzled by what it might be due to an unusually violent gamma-ray explosion in the depths of space. In the past 50 years, nothing comparable had been observed.
Associated Press News
Scientists are baffled by a powerful and long-lasting gamma ray explosion outside our galaxy
Scientists have discovered a gamma ray explosion outside our galaxy that's not only exceptionally powerful, but also long-lasting.
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