Giant Cosmic Explosion May Be Biggest Since Human Civilization Began, Say Scientists

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Giant Cosmic Explosion May Be Biggest Since Human Civilization Began, Say Scientists
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The source was a 1-In-10,000-year gamma-ray burst, the most powerful class of explosions in the universe, which has been dubbed the 'Brightest of All Time' (BOAT).

“If it’s there, it’s very faint. We plan to keep looking,” said Andrew Levan, a professor of astrophysics at Radboud University in Nijmegen, Netherlands. The search is underway with both the James Webb Space Telescope and the Hubble Space Telescope for the supernova, but there is another possible explanation.

“It’s possible the entire star collapsed straight into the black hole instead of exploding,” said Levan. It’s thought that gamma-ray bursts are jets of particles accelerated into space at near-light speed that rip through the remains of a collapsed massive star—and signal the birth of a back hole.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.

The jets of intense radiation sensed by spacecraft in October traveled for around 1.9 billion years, but it was the angle at which it arrived that may explain its brightness, suggest the researchers. The jets were very narrow and one was pointed directly at Earth. That may explain its incredible brightness.

The research team included astronomers from the UK, USA, Australia, the Netherlands, Italy, and South Africa using data from radio telescopes across the world and the solar system.

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