James Webb Space Telescope Feed Post

The JWST UNCOVER Treasury survey: Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization

The UNCOVER imaging reveals spectacular views of a vast array of galaxies across cosmic time, shown here as drawn from the history of the cosmic star formation rate density from Casey et al. (2018). These galaxies span foreground galaxies within the Abell 2744 cluster, to red and/or remarkably resolved lensed systems at Cosmic Noon (sub-mm galaxy A2744-ID02 from González-López et al. (2017) and a quiescent galaxy candidate), and back into the most extreme – and therefore uncertain – epochs to the time of the first galaxies (GLASSz8-1 from Roberts-Borsani et al. (2022) and triply-lensed JD1 from Zitrin et al. (2014)). White scale bars indicate 0.5” in all postage stamps.