This illustration depicts an artist’s impression of one of the brightest explosions ever observed in space. (Image: NASA, ESA, NSF's NOIRLab, Mark Garlick, Mahdi Zamani)
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Moneycontrol31-12-2025, 15:29

JWST Uncovers Most Distant Supernova, Shedding Light on Early Universe

  • JWST confirmed the most distant supernova, exploding 730 million years after the Big Bang, offering a rare glimpse into the early cosmos.
  • The event, initially detected as GRB 250314A by SVOM, was verified by VLT and later distinguished by JWST's NIRCam from its host galaxy.
  • This discovery provides the strongest evidence linking gamma-ray bursts to massive star deaths in the early universe.
  • The supernova's properties surprisingly matched SN 1998bw, suggesting early massive stars were similar to modern ones, challenging prior assumptions.
  • The finding anchors understanding of star evolution at cosmic dawn and prompts further JWST observations of the host galaxy.

Why It Matters: JWST's discovery of the most distant supernova reveals insights into early star evolution and cosmic dawn.

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