solar nebula hypothesis: The theory that the planets formed from the same cloud of gas and dust that formed the sun.
solar system: The sun and the nonluminous objects that orbit it, including the planets, comets, and asteroids.
The conventional model for solar system formation, called the solar nebula hypothesis, holds that the solar nebula cooled from T 2000 K with an initially uniform solar composition.
Pierre-Simon Laplace
1749-1827
French
made important mathematical contributions to differential equations; promoted the solar nebula hypothesis for the origin of the solar system ...
 See also: Hypothesis, Comet, Earth, Supernova, Mass
  
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