#early universe

Using the James Webb Space Telescope and gravitational lensing, astronomers characterized the ultra-faint galaxy LAP1-B and identified it as the most metal-poor galaxy yet observed in the early universe.

A newly identified X-ray bright object in the young universe could offer astronomers a missing link in the debate over what JWST’s mysterious little red dots really are.

A newly identified ‘X-ray dot’ spotted by Chandra may offer astronomers a crucial link between mysterious little red dots seen by JWST and the growth of supermassive black holes in the early universe.

A galaxy seen just 400 million years after the big bang appears to show the strongest evidence yet for Population III stars, the extremely hot, metal-free objects thought to have lit up the early universe.

A new preprint proposes that evaporating low-mass primordial black holes may have generated violent shockwaves in the early universe’s plasma, not just diffuse heat.

New observations are forcing astronomers to rethink models of galaxy formation after discovering massive galaxies that existed when the universe was only 1.4 billion years old. These ancient giants shouldn't exist according to standard cosmological models, prompting a reassessment of how quickly structure can emerge in the early universe.

A massive international collaboration using the James Webb Space Telescope and ALMA has identified 70 dusty galaxies from the universe's first billion years. These ancient objects appear to have formed stars far earlier than current models predict, potentially forcing a fundamental reassessment of how galaxies evolve.