nebular hypothesis
Noun
Meaning
(cosmology) the theory that the solar system evolved from a hot gaseous nebula
Source: WordNetHypernyms
Examples
Roche made a mathematical study of Laplace's nebular hypothesis and presented his results in a series of papers to the Academy of Montpellier from his appointment until 1877.
The most important were on comets (1860) and the nebular hypothesis itself (1873).