JWST's Discovery: The First Stars in the Universe?

Astronomers using the James Webb Space Telescope (JWST) have potentially found the first glimpse of Population III stars, the first stars to appear in the universe with almost no metals in them. The team looked at spectral lines from a region near a galaxy known as GN-z11, one of the most distant galaxies ever observed, and found a strong HeIIλ1640 line, which could have been emitted by massive Population III stars. This study isn't enough to prove the presence of Population III stars, but it's a compelling argument.