UNCOVER-z12 is a high-redshift Lyman-break galaxy discovered by the James Webb Space Telescope (JWST)[1] during NIRCam imaging for the JWST Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization (UNCOVER) project[2] in November 2023.

[4] UNCOVER-z12 was first observed when large amounts of gravitational lensing from Abell 2744 made the galaxy visible.

[5] The gravity of Abell 2744 warps the fabric of space-time sufficiently to magnify the light of more faraway galaxies.

The James Webb Space Telescope used the gravitational lensing to discover UNCOVER-z12, and further studies of deep galaxies located within Abell 2744 are currently ongoing.

[7] It has a redshift of 13, making it the 3rd most distant object ever discovered in the observable universe.