Primordial galaxies as a research area focuses on the formation, physical conditions, and early evolution of the first galactic systems emerging in the high-redshift Universe (z ≳ 6–15). It investigates how gas cooling, metal-free or metal-poor star formation, feedback from massive Population III and early Population II stars, and nascent black holes drove the buildup of stellar mass, chemical enrichment, and reionization of the intergalactic medium. This field integrates observations from deep near-infrared surveys and spectroscopy with cosmological hydrodynamical simulations and semi-analytic models to constrain dark matter halo assembly, baryonic physics, and the linkage between early galaxies and large-scale structure.
The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back then, the cosmos wasn't filled with stars and galaxies but with a boiling soup of quarks and gluons, ...
Astronomy
Apr 5, 2026
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Using the James Webb Space Telescope (JWST), astronomers have discovered a new red galaxy at a redshift of approximately 11.45. The newfound galaxy, which received designation EGS-z11-R0, turns out to be the most distant ...
Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron—less than 1/40,000th of the sun. This signature makes it the clearest example of a star within a primordial system that preserves ...
Astronomy
Mar 16, 2026
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Astronomers have found that both the core of our Milky Way and the earliest proto-galaxies in the universe share a surprising trait: They are unusually calm and quiet in terms of harsh radiation. This tranquility is not just ...
Astronomy
Mar 12, 2026
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Astronomers with the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) have used data from the project to make the largest, most accurate 3D map yet of the light emitted by excited hydrogen in the early universe, 9 billion ...
Astronomy
Mar 3, 2026
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A team of 48 astronomers from 14 countries, led by the University of Massachusetts Amherst, has discovered a population of dusty, star-forming galaxies at the far edges of the universe that formed only a billion years after ...
Astronomy
Feb 17, 2026
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The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at high-redshift. The redshift ...
The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international team led by Nikolaus Sulzenauer and Axel Weiß from the Max Planck Institute for Radio Astronomy ...
Astronomy
Feb 10, 2026
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The James Webb Space Telescope (JWST) was designed to look back in time and study galaxies that existed shortly after the Big Bang. In so doing, scientists hoped to gain a better understanding of how the universe has evolved ...
Astronomy
Feb 8, 2026
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Astronomers from the University of Tokyo in Japan and elsewhere have employed the James Webb Space Telescope (JWST) to observe a distant ultraviolet-luminous galaxy known as CEERS2-588. Results of the observational campaign, ...
