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  2. Nebular hypothesis - Wikipedia

    en.wikipedia.org/wiki/Nebular_hypothesis

    The widely accepted modern variant of the nebular theory is the solar nebular disk model (SNDM) or solar nebular model. [1] It offered explanations for a variety of properties of the Solar System, including the nearly circular and coplanar orbits of the planets, and their motion in the same direction as the Sun's rotation.

  3. 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 .

  4. Category:Virtual pets - Wikipedia

    en.wikipedia.org/wiki/Category:Virtual_pets

    A virtual pet is an imaginary pet that, as in the real world, needs to be cared for. Such pets are usually on the Internet or in a computer game. Subcategories.

  5. History of Solar System formation and evolution hypotheses

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

    The most widely accepted model of planetary formation is known as the nebular hypothesis. This model posits that, 4.6 billion years ago, the Solar System was formed by the gravitational collapse of a giant molecular cloud spanning several light-years. Many stars, including the Sun, were formed within this collapsing cloud. The gas that formed ...

  6. Viktor Safronov - Wikipedia

    en.wikipedia.org/wiki/Viktor_Safronov

    Viktor Sergeevich Safronov (Russian: Ви́ктор Серге́евич Сафро́нов) (born Velikie Luki; 11 October 1917 in Russia – 18 September 1999 in Moscow, Russia) was a Soviet astronomer who put forward the low-mass-nebula model of planet formation, a consistent picture of how the planets formed from a disk of gas and dust around the Sun.

  7. List of artificial pet games - Wikipedia

    en.wikipedia.org/wiki/List_of_artificial_pet_games

    A pet simulator (sometimes called virtual pets or digital pets [1]) is a video game that focuses on the care, raising, breeding or exhibition of simulated animals. These games are software implementations of digital pets. Such games are described as a sub-class of life simulation game.

  8. List of fan wikis - Wikipedia

    en.wikipedia.org/wiki/List_of_fan_wikis

    Wikia then began to assimilate independent fan wikis, such as Memory Alpha (a Star Trek fan wiki) and Wowpedia (a World of Warcraft fan wiki). [7] In the late 2010s—after Fandom and Gamepedia were acquired and consolidated by the private equity firm TPG Inc.—several wikis began to leave the service, including the RuneScape, Zelda, and ...

  9. Virtual pet - Wikipedia

    en.wikipedia.org/wiki/Virtual_pet

    The first-known virtual pet was a screen-cursor chasing cat called Neko. It was rather called a "desktop pet" since at that time the term "virtual pet" did not exist. PF.Magic released the first widely popular virtual pets in 1995 with Dogz, [5] followed by Catz in the spring of 1996, eventually becoming a franchise known as Petz.