Gravitational lens shows a galaxy just 800 million years post-Big Bang

Gravitational lens shows a galaxy just 800 million years post-Big Bang

Early galaxy has elements produced by the Universe's first supernovae.

An ultra-faint, chemically primitive galaxy forming in the reionization era

The formation of the first stars and galaxies marked the onset of chemical enrichment, yet direct observations of such primordial systems remain elusive. Here we present James Webb Space Telescope spectroscopic observations of LAP1-B, an ultra-faint galaxy at redshift zspec = 6.625 ± 0.001, corresponding to a cosmic age of 800 million years after the Big Bang. This galaxy is strongly magnified by gravitational lensing. LAP1-B exhibits a gas-phas…

Ultra-Faint Primitive Galaxy Forms During Reionization

In a groundbreaking discovery that pushes the boundaries of our understanding of the early universe, astronomers using the James Webb Space Telescope (JWST) have identified LAP1-B, an ultra-faint, chemically primitive galaxy located at a redshift of 6.625. This astonishing find places LAP1-B at a cosmic age merely 800 million years following the Big Bang, offering […]