Uploads by OptimusPrimeBot - Wikimedia Commons

Uploads by OptimusPrimeBot - Wikimedia Commons

Earliest detection of metal challenges what we know about the first galaxies

Astronomers have detected carbon in a galaxy just 350 million years after the Big Bang, the earliest detection of any element in the universe other than hydrogen.

File:Galaxy Forming in the Early Universe (Artist’s Concept) (2024-114).tiff - Wikimedia Commons

Unveiling the formation of the first galaxies

Utilizing high-resolution three-dimensional radiation hydrodynamics simulations and a detailed supernova physics model run on supercomputers, a research team led by Dr. Ke-Jung Chen from the Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA) has revealed that the physical properties of the first galaxies are critically determined by the masses of the first stars. Their study is published in The Astrophysical Journal.

Discovery of unexpected ultramassive galaxies may not rewrite cosmology, but still leaves questions

Ever since the James Webb Space Telescope (JWST) captured its first glimpse of the early universe, astronomers have been surprised by the presence of what appear to be more "ultramassive" galaxies than expected. Based on the most widely accepted cosmological model, they should not have been able to evolve until much later in the history of the universe, spurring claims that the model needs to be changed.

New research sheds light on early galaxy formation

Researchers have developed a new computer simulation of the early universe that closely aligns with observations made by the James Webb Space Telescope (JWST).

JWST Glimpses the Cosmic Dawn of the Universe

Thanks to the JWST, galaxies that existed during the Cosmic Dawn have been observed for the first time!