New images show galaxy forming that is similar in mass to young Milky Way

In this image from Nasa’s James Webb Space Telescope, thousands of glimmering galaxies are bound together by their own gravity, making up a massive cluster formally classified as MACS J1423 (Nasa/PA)

New images show a galaxy forming that is similar to what our Milky Way’s mass might have been at the same stage of development.

Nasa’s James Webb Space Telescope has detected and “weighed” a galaxy that existed about 600 million years after the Big Bang.