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In gamma-ray astronomy, gamma-ray bursts ( GRBs) are immensely energetic explosions that have been observed in distant galaxies, described by NASA as "the most powerful class of explosions in the universe". [1] They are the most energetic and luminous electromagnetic events since the Big Bang.
Nov 21, 2023 · The most powerful events in the known universe – gamma-ray bursts (GRBs) – are short-lived outbursts of the highest-energy light. They can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of our Sun.
Oct 5, 2023 · Gamma-ray bursts (GRBs) are the most powerful and violent explosions in the known universe. These brief flashes of high-energy light result from some of the universe's most explosive events,...
- 3 min
- Robert Lea
Mar 28, 2023 · Their answer: once in every 10,000 years. This chart compares the BOAT’s prompt emission to that of five previous record-holding long gamma-ray bursts. The BOAT was so bright it effectively blinded most gamma-ray instruments in space, but U.S. scientists were able to reconstruct its true brightness from Fermi data.
Feb 28, 2024 · The most powerful events in the known universe – gamma-ray bursts (GRBs) – are short-lived outbursts of the highest-energy light. They can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of our Sun. Now thought to announce the births of new black holes, they were discovered by accident.
Jun 1, 2023 · Fifty years ago, on June 1, 1973, astronomers around the world were introduced to a powerful and perplexing new phenomenon called GRBs (gamma-ray bursts). Today sensors on orbiting satellites like NASA’s Swift and Fermi missions detect a GRB somewhere in the sky about once a day on average.
Jun 9, 2023 · 4 min read. Gamma-Ray Bursts: Black Hole Birth Announcements. NASA Universe Web Team. Jun 09, 2023. Article. Gamma-ray bursts are the brightest, most violent explosions in the universe, but they can be surprisingly tricky to detect.
