Webb Detects Earliest-Known Supernova Explosion
Astronomers using the NASA/ESA/CSA James Webb Space Telescope have discovered a supernova explosion accompanying the gamma-ray burst event GRB 250314A at a redshift of 7.3, when the Universe was only 730 million years old. The previous chart-topping supernova event occurred when the Universe was 1.8 billion years old. The discovery is…
bubmagDecember 11, 2025