Webb spots a rare, metal-poor galaxy overdensity at redshift 5.945

The James Webb Space Telescope has revealed an overdensity of 17 galaxies near the quasar SDSS J0100+2802, a system remarkably lacking in heavy elements. These galaxies, existing at a redshift of 5.945, possess a mean metallicity of approximately 3% solar, around 0.4 dex more metal-poor than comparable galaxies at the same cosmic time. This unusually pristine galactic collection may preserve signatures of Population III stars, the first stars formed after the Big Bang, and offers a new path to understanding their origins and chemical impact on the early universe. Analysis of the environment surrounding a metal absorber at redshift 5.945 reveals a larger-scale ionized region, suggesting the area is exposed…