Astronomers using the James Webb Space Telescope (JWST) have found three of the oldest galaxies in our universe.
These galaxies were forming when the universe was only 400 million to 600 million years old.
These galaxies look like fuzzy red smudges in the JWST’s pictures. They are made of helium and hydrogen which help shape them into the galaxies we see today like spirals and eclipses. These elements help galaxies grow over millions of years.
“You could say that these are the first ‘direct’ images of galaxy formation that we have ever seen,” said Kasper Elm Heintz, the lead author of the study and an astrophysicist at the Cosmic Dawn Center (DAWN) in Denmark. “James Webb has shown us early galaxies before but this time we are seeing their very birth, the creation of the first star systems in the universe.”
The universe went dark about 400,000 years after the Big Bang. This happened when space cooled down and allowed neutral hydrogen atoms to form.
“This is the process that we see the beginning of in our observations,” said Darach Watson, co-author of the study.
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