#cosmology
6 posts
Euclid Telescope Uncovers 31 Ancient Quasars, Rewriting Early Universe History
The Euclid space telescope has discovered 31 of the most ancient quasars, including the two earliest ever observed. This breakthrough offers unprecedented insights into the universe's infancy and…
New Bullet Cluster Study Presents Alternative to Dark Matter, Challenging Core Evidence
A recent JWST study on the Bullet Cluster proposes an alternative explanation for observed gravitational lensing, potentially challenging long-held evidence for dark matter's existence.
New DESI Data Challenges Cosmological Principle, Suggesting a Less Uniform Universe
New analysis of DESI data reveals that the distribution of galaxies may not be uniform on the largest scales, challenging the cosmological principle. This could necessitate a fundamental rethinking…
Cosmic Inflation and the Multiverse: What Happened in the First Second
The Big Bang model explains almost everything we observe about the universe — except why it is so uniform, flat, and devoid of magnetic monopoles. Cosmic inflation solves all three problems, and uncomfortably implies the existence of other universes.
Dark Matter Direct Detection: The Search for the Invisible Universe
About 27% of the universe is made of dark matter — something that has mass and gravity but does not emit, absorb, or reflect light. We know it is there. We have never detected a single dark matter particle. The hunt is one of the most important unsolved problems in physics.
The Hubble Tension: A Crisis at the Heart of Modern Cosmology
Two independent ways of measuring how fast the universe is expanding give two incompatible answers. The discrepancy has sharpened over the past decade as the measurements have grown more precise. Astronomers call it the Hubble tension, but a more accurate name might be a crisis: it suggests either a systematic error somewhere or that our standard model of cosmology is incomplete.