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Rare Repeating Gamma-Ray Burst Challenges Astronomical Norms

9/12/2025

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Summary

Story summary

Astronomers identified a unique gamma-ray burst (GRB 250702B) that repeated multiple times over a day, unlike typical bursts that last seconds to minutes.
Located outside our galaxy, the source was confirmed by the Very Large Telescope (VLT) and Hubble Space Telescope.
This GRB lasts 100 to 1,000 times longer than most, prompting inquiries into its origin.
Possible explanations include a massive star collapse or a black hole disrupting a star, both needing unusual conditions.
Researchers are using advanced instruments, including the James Webb Space Telescope, to monitor the aftermath, marking progress in understanding gamma-ray bursts.

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Story summary

Astronomers identified a unique gamma-ray burst (GRB 250702B) that repeated multiple times over a day, unlike typical bursts that last seconds to minutes.
Located outside our galaxy, the source was confirmed by the Very Large Telescope (VLT) and Hubble Space Telescope.
This GRB lasts 100 to 1,000 times longer than most, prompting inquiries into its origin.
Possible explanations include a massive star collapse or a black hole disrupting a star, both needing unusual conditions.
Researchers are using advanced instruments, including the James Webb Space Telescope, to monitor the aftermath, marking progress in understanding gamma-ray bursts.