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This star's death billions of years ago is challenging what we know about supernovae


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Bengaluru: Once upon a time, billions of years ago, a star died. It let out a pulse of extremely high energy a gamma ray burst (GRB), as the astronomers call it that was detected on Earth just last year. Lasting less than a second, it was the shortest of its kind ever observed. 
And it appears to have challenged some existing models that govern the way these bursts are seen.     
Astronomers looking through NASA’s Fermi Gamma-ray Space Telescope observed a pulse of extremely high energy in the form of a GRB on 26 August 2020. The GRB, the astronomers say, is the shortest known to have been caused by the death of a star.  ....

La Palma , New Mexico , United States , Gran Telescopio Canarias , Sunanda Ranjan , Shreya Anand , Ray Astrophysics Laboratory , Zhang At Nanjing University , Interplanetary Network , European Space Agency International Gamma , Gamma Ray Space Telescope , Bin Zhang , Nanjing University , Nature Astronomy , European Space Agency , Gamma Ray Astrophysics Laboratory , Zwicky Transient Facility , Palomar Observatory , Gehrels Swift Observatory , National Radio Astronomy Observatory , Karl Jansky Very Large Array , Gemini North , லா பால்மா , புதியது மெக்ஸிகோ , ஒன்றுபட்டது மாநிலங்களில் , கிரான் தொலைநோக்கி கனாரியாக்கள் ,