James Webb telescope finds two of the oldest and most distant galaxies ever seen

Nasa’s James Webb space telescope is finding bright, early galaxies that until now have been hidden from view, including one that may have formed just 350m years after the big bang.

more…

Tau.Neutrino said:

James Webb telescope finds two of the oldest and most distant galaxies ever seen

Nasa’s James Webb space telescope is finding bright, early galaxies that until now have been hidden from view, including one that may have formed just 350m years after the big bang.

more…

OK. That’s to be expected. I think.

Webb is currently conducting a “cosmic origins deep survey”.

https://arxiv.org/pdf/2211.07865.pdf

Area of coverage.

Wavelength bands used.

Aims.

n-body simulation of deep field. Dark matter is in blue and ionised hydrogen gas is in pink. There’s far more pink at a redshift of 7 than at a redshift of 9