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JWST shows an ancient galaxy in stunning spectroscopic detail

Nature Podcast

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James Webb's Space Telescope Identifies the Galaxy

The galaxy was identified with the Hubble Space Telescope back in 2014. James Webb is much more sensitive to those wavelengths, and so it can identify these distant galaxies much more easily. And finally, James Webb has what we call spectroscopic capabilities. It is able to split white light into its constituents' energies, and you can see signatures of oxygen, of carbon, of hydrogen,. all these sort of things. That allows us to pinpoint the distance to galaxies, pinpoint how many stars they're forming, what their mass is.

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