The JWST just identified a supernova from only 730 million years after the Big Bang

Supernovae aren’t one of the JWST’s main science themes, but the perceptive telescope is full of surprises. Recently, it pinpointed a single star in a galaxy when the universe was only about 730 million years old. It wasn’t just any random star; this one was a supernova responsible for a gamma-ray burst (GRB) detected back in March, 2025.