Astronomy: the JWST photos of distant galaxies has people telling us these galaxies are from 200 million years after the Big Bang.
How do we measure the age of the light/galaxies? We can’t be using triangulation. I’m assuming red shift, but I’d like to know more about how this is figured out, and what is the margin of error in the calculation.
VanTechno t1_j21qvp4 wrote
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Astronomy: the JWST photos of distant galaxies has people telling us these galaxies are from 200 million years after the Big Bang.
How do we measure the age of the light/galaxies? We can’t be using triangulation. I’m assuming red shift, but I’d like to know more about how this is figured out, and what is the margin of error in the calculation.