An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope (JWST), detecting a supernova—the explosive death of a massive star—at an ...

An international team of astronomers, working with researchers from University College Dublin and other institutions, has detected a supernova from an era once thought far beyond reach. Using the ...

Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been produced by the explosion of a massive star just 730 million years after the Big ...

Astronomers are a step closer to cracking one of the secrets of dark energy—the mysterious force believed to be causing the universe's accelerated expansion. Dark energy makes up approximately 68% of ...

The James Webb Space Telescope has spotted a stellar explosion from a time when the cosmos was still in its infancy, catching the light of a supernova that detonated less than a billion years after ...