Galaxies data ‘a milestone’ for James Webb Space Telescope mission

Data from the James Webb Space Telescope has confirmed four galaxies dating to when the universe was around 300–500 million years old (PA)

Data from the James Webb Space Telescope (JWST) has confirmed four galaxies dating to when the universe was around 300–500 million years old.

The telescope was designed to probe the early universe and initial surveys have identified many possible candidate galaxies of extremely high redshift – a measure of the speed that helps gauge distance.