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Early Universe

An exciting era of exploration

Long-exposure spectra taken with the James Webb Space Telescope (JWST) reveal the most distant galaxies ever observed — back to a time when the Universe was only 2% of its present age.

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Fig. 1: Two instruments working in tandem.

NASA, ESA, CSA, M. Zamani (ESA/Webb), Leah Hustak (STScI)


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Correspondence to Pieter van Dokkum.

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van Dokkum, P. An exciting era of exploration. Nat Astron 7, 514–515 (2023).

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