One of the most distant and, therefore, earliest star-killing supernovas ever observed has been discovered by astronomers with the help of NASA’s James Webb Space Telescope (JWST).
About 2 billion years after the Big Bang, this explosion, which rocked the cosmos, marks the death of a colossal star, as reported by Space.com.
This supernova, detected as part of the JWST Advanced Deep Extragalactic Survey (JADES) program, could help scientists add more details to the cosmic narrative of stellar life and death they are currently piecing together.
Designated AT 2023adsv, this supernova erupted approximately 11.4 billion years ago in a massive early galaxy.
Interestingly, in the local universe, this stellar explosion seems to differ somewhat from more recent supernovas. The high-energy blast, in particular, appears to have been extraordinarily violent.
“The first stars were considerably different from today’s stars. They were massive, they were hot, and they had truly gargantuan explosions,” said David Coulter, a member of the JADES team and a researcher at the Space Telescope Science Institute (STScI), during the 245th meeting of the American Astronomical Society (AAS) in National Harbor, Maryland, on Monday (January 13).
He added, “We don’t know how many [supernovas] the JWST will find, but we can start to push towards the beginning of these first stars and hope to witness their explosions.”
NASA JWST Discovers One of the Earliest ‘Truly Gargantuan’ Supernovas
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