Nasa’s James Webb Space Telescope finds set of huge galaxies that ‘shouldn’t exist’
Nasa’s James Webb Space Telescope has found a set of massive galaxies that should not exist.
The equipment was used to observe a set of massive galaxies that formed around 500-700 million years after the Big Bang. Those galaxies have stellar masses as high as ten billion times that of our Sun, and one that could be as massive as 100 billion of our Sun.
Such galaxies should not be expected so soon after the beginnings of the universe, the researchers say.
If they can be confirmed, they suggest that our history of the early cosmos may be wrong, and that galaxies grew far more quickly than we realised.
The new study, ‘A population of red candidate massive galaxies ~600 Myr after the Big Bang’, is published in Nature today.