An Etymological Dictionary of Astronomy and Astrophysics

One of the first → cosmological models to incorporate Einstein’s → general relativity, predicting that → galaxies should be → receding from each other due to → cosmic expansion.

See also: → Friedmann equation; Georges Edouard Lemaître (1894-1966), a
Belgian cosmologist and priest who proposed a first sketch of the → Big Bang theory; → universe.