Biography
Georges Lemaître was a Belgian priest and physicist who, in 1927, derived an expanding universe from general relativity and estimated its rate of expansion — two years before Hubble's observations. He went further, proposing that the cosmos began from a single 'primeval atom', the idea that grew into the Big Bang theory.
Scientific contributions
- Proposed that the universe is expanding (1927)
- Originated the 'primeval atom' — the Big Bang concept
- Derived the velocity–distance relation before Hubble's confirmation
Major discoveries
Theories developed
Knowledge connections
- Part ofModern Astronomy
- PredictedThe Expansion of the Universe
- DevelopedThe Big Bang
- StudiesThe Big Bang
- StudiesThe Expansion of the Universe
- StudiesThe Hubble–Lemaître Law
Sources & references
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
- BritannicaEncyclopaedia Britannica
General reference for the history of astronomy, biographies, and cultural context.