# Big Bang Theory
Status: public
Confidence: medium (0.82) (verified)
Last verified: 2026-05-28
Generation: ai_structured


## TL;DR

Big Bang theory explains an expanding universe with evidence from galaxy recession and cosmic microwave background radiation. This repair keeps cosmology claims source-mapped.

## Core Explanation

The repaired entry replaces weak coverage with three cornerstone sources for expansion, the Big Bang model, and the cosmic microwave background.

## Further Reading

- [Big Bang Theory](https://map.gsfc.nasa.gov/universe/bb_theory.html)
- [A Relation between Distance and Radial Velocity among Extra-Galactic Nebulae](https://doi.org/10.1073/pnas.15.3.168)
- [A Measurement of Excess Antenna Temperature at 4080 Mc/s](https://doi.org/10.1086/148307)