The James Webb Space Telescope has been fully operational for less than a year, but its data is already hinting the early universe may have more galaxies — and more complicated galaxies — than many models have predicted.
looked at 850 galaxies that formed between 11 billion and 13 billion years ago, grouping them according to type — spiral, elliptical, irregular or a combination.
Or, the stars forming in these galaxies might be hotter and brighter than expected, forming from metal-poor gas, which allows them to grow to massive sizes — and get hotter and brighter.The truly revolutionary part of the JWST's technology is the telescope's ability to take a "spectrum" — effectively a chemical fingerprint of a galaxy's makeup — for even the most distant galaxies.
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