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  2. Nebular hypothesis - Wikipedia

    en.wikipedia.org/wiki/Nebular_hypothesis

    The nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests the Solar System is formed from gas and dust orbiting the Sun which clumped up together to form the planets.

  3. Formation and evolution of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Formation_and_evolution_of...

    Pierre-Simon Laplace, one of the originators of the nebular hypothesis. Ideas concerning the origin and fate of the world date from the earliest known writings; however, for almost all of that time, there was no attempt to link such theories to the existence of a "Solar System", simply because it was not generally thought that the Solar System, in the sense we now understand it, existed.

  4. Portal:Astronomy/Featured/February 2010 - Wikipedia

    en.wikipedia.org/wiki/Portal:Astronomy/Featured/...

    In cosmogony, the nebular hypothesis is the most widely accepted model explaining the formation and evolution of the Solar System. It was first proposed in 1734 by Emanuel Swedenborg . Originally applied only to our own Solar System , this method of planetary system formation is now thought to be at work throughout the universe .

  5. History of Solar System formation and evolution hypotheses

    en.wikipedia.org/wiki/History_of_Solar_System...

    While the broad picture of the nebular hypothesis is widely accepted, [33] many of the details are not well understood and continue to be refined. The refined nebular model was developed entirely on observations of the Solar System because it was the only one known until the mid-1990s.

  6. Lists of planets - Wikipedia

    en.wikipedia.org/wiki/Lists_of_planets

    These are lists of planets.A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk.

  7. Protoplanetary disk - Wikipedia

    en.wikipedia.org/wiki/Protoplanetary_disk

    The nebular hypothesis of solar system formation describes how protoplanetary disks are thought to evolve into planetary systems. Electrostatic and gravitational interactions may cause the dust and ice grains in the disk to accrete into planetesimals .

  8. Planetary migration - Wikipedia

    en.wikipedia.org/wiki/Planetary_migration

    In the grand tack hypothesis the migration of Jupiter is halted and reversed when it captured Saturn in an outer resonance. [36] The halting of Jupiter's and Saturn's migration and the capture of Uranus and Neptune in further resonances may have prevented the formation of a compact system of super-earths similar to many of those found by Kepler ...

  9. Geology of solar terrestrial planets - Wikipedia

    en.wikipedia.org/wiki/Geology_of_solar...

    The Solar System is believed to have formed according to the nebular hypothesis, first proposed in 1755 by Immanuel Kant and independently formulated by Pierre-Simon Laplace. [2] This theory holds that 4.6 billion years ago the Solar System formed from the gravitational collapse of a giant molecular cloud. This initial cloud was likely several ...