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In gamma-ray astronomy, gamma-ray bursts ( GRBs) are immensely energetic explosions that have been observed in distant galaxies, being the brightest and most extreme explosive events in the entire universe, [1] [2] [3] as NASA describes the bursts as the "most powerful class of explosions in the universe". [4]
21 de nov. de 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. Now thought to announce the births of new black holes, they were discovered by accident.
5 de oct. de 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
1 de jun. de 2023 · Jun 01, 2023. Article. 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.
- Francis Reddy
- 4 min
28 de mar. de 2023 · 7 min read. NASA Missions Study What May Be a 1-In-10,000-Year Gamma-ray Burst. Francis Reddy. Mar 28, 2023. Article. On Sunday, Oct. 9, 2022, a pulse of intense radiation swept through the solar system so exceptional that astronomers quickly dubbed it the BOAT – the brightest of all time.
18 de abr. de 2024 · Gamma-ray burst, an intense, nonrepeating flash of high-energy gamma rays that appears unpredictably at arbitrary points in the sky at a rate of about one per day and typically last only seconds. First discovered in the 1960s, these powerfully luminous events long remained completely mysterious,
30 de sept. de 2022 · The keen resolution of Hubble helps study the environments of gamma-ray bursts. Hubble images showed that one type of gamma-ray burst arises from far-flung galaxies, which are forming stars at enormously high rates. This confirmed that the bursts of light originated from the collapse of massive stars.
