CMB Anisotropy Project
Mapping the afterglow of the Big Bang to decode the origins of the universe.
The CMB Anisotropy Project is dedicated to the high-precision analysis of the Cosmic Microwave Background (CMB), the faint afterglow of the Big Bang. We map and study the minute temperature variations, or anisotropies, in this ancient light to probe the conditions of the infant universe. These patterns hold the secrets to cosmic inflation, the distribution of dark matter and dark energy, and the fundamental parameters that define our universe. Our work involves processing vast datasets from space-based observatories to create the most detailed maps of the early cosmos ever produced.
Publications from CMB Anisotropy Project
July 31, 2026
How Old Is the Universe? 155,600 Ancient Stars, a 13.73 Gyr Floor, and the Hubble Tension
July 30, 2026
South Pole Telescope Finds 7,190 Galaxy Clusters: Inside the SPT-3G 5-Year Sunyaev-Zel'dovich Catalog
July 29, 2026
Does Dark Energy Exist? Tilted Observers, the >7σ q₀ Dipole, and Pantheon+ Deceleration
July 28, 2026
Is Early Dark Energy Dead? Axion EDE and the 3.3σ Hubble Tension
July 27, 2026
Was the Electron Heavier in the Early Universe? Varying mₑ and the Hubble Tension
July 26, 2026
Did AGN Feedback Solve the S8 Tension? SPT-3G Compton-y Maps & 21σ Cross-Correlation
July 25, 2026
Is the Universe Flat or Closed? The Ω_k Curvature Tension After ACT DR6 and DESI DR2
July 24, 2026
Is the Universe a Donut? Cosmic Topology, Matched Circles, and the E1–E18 Manifold Search
July 23, 2026
Are Primordial Black Holes Dark Matter? CMB μ-Distortion Limits & QCD-Epoch Formation
FAQs about CMB Anisotropy Project
The CMB is the oldest light in the universe. It's a faint afterglow of heat leftover from the Big Bang that fills all of space.
In this context, an anisotropy is a very small difference in temperature in the CMB. While the CMB is incredibly uniform, it has tiny hot and cold spots.
These tiny temperature spots were the seeds that grew into everything we see today. The slightly denser, hotter spots eventually formed all the stars, planets, and galaxies through gravity. 🌌
The project uses very sensitive radio telescopes, often located in high-altitude, dry locations like the Atacama Desert or on space satellites, to create detailed maps of these faint temperature patterns across the entire sky.