English

General relativity, early galaxy formation and the JWST observations

General Relativity and Quantum Cosmology 2025-11-26 v1 Cosmology and Nongalactic Astrophysics

Abstract

The James Webb Space Telescope has recently detected massive, fully formed, galaxies at redshifts corresponding to few hundred million years after the Big-Bang. However, our current cosmological model cannot produce such massive systems so early in the lifetime of the universe. A number of theoretical solutions have been proposed, but they all appeal to exotic new physics and introduce rather excessive fine-tuning. In this essay, we outline a theoretical answer to the early galaxy-formation question, which operates within standard general relativity and standard cosmology, without appealing to any new physics. Instead, we account for the effect of a well established feature of our universe. This feature, which has so far been kept in the margins of mainstream cosmology, are the peculiar velocities.

Keywords

Cite

@article{arxiv.2511.19736,
  title  = {General relativity, early galaxy formation and the JWST observations},
  author = {Christos G. Tsagas},
  journal= {arXiv preprint arXiv:2511.19736},
  year   = {2025}
}

Comments

Received "Honorable Mention" in the 2025 GRF essay competition. Published in IJMPD