Nature Astronomy, Published online: 19 October 2023; doi:10.1038/s41550-023-02103-9

A rare perfect alignment between two galaxies in the young Universe has been captured by the James Webb Space Telescope. The further (z ≈ 3) galaxy is curved into an Einstein ring due to the bending of space around the nearer (z ≈ 2) galaxy, which is massive and compact—representative of the pristine core of a present-day galaxy.

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