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  2. SpaceEngine - Wikipedia

    en.wikipedia.org/wiki/SpaceEngine

    spaceengine.org. SpaceEngine is an interactive 3D planetarium and astronomy software [2] initially developed by Russian astronomer and programmer Vladimir Romanyuk. [3] Development is now continued by Cosmographic Software, an American company founded by Romanyuk and the SpaceEngine Team in February 2022, based in Connecticut.

  3. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    720,000 km/h (450,000 mi/h) [10] Orbital period. ~230 million years [10] The Solar System[d] is the gravitationally bound system of the Sun and the objects that orbit it. [11] It formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc.

  4. Mormon cosmology - Wikipedia

    en.wikipedia.org/wiki/Mormon_cosmology

    Mormon cosmology. Christus statue of Jesus depicted among artwork representing the planets and stars of the cosmos, which Mormons believe Jesus created under the direction of God the Father. Mormon cosmology is the description of the history, evolution, and destiny of the physical and metaphysical universe according to Mormonism, which includes ...

  5. History of astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_astronomy

    The Ancient Greeks developed astronomy, which they treated as a branch of mathematics, to a highly sophisticated level. The first geometrical, three-dimensional models to explain the apparent motion of the planets were developed in the 4th century BC by Eudoxus of Cnidus and Callippus of Cyzicus.

  6. Nice model - Wikipedia

    en.wikipedia.org/wiki/Nice_model

    Nice model. In astronomy, the Nice (/ ˈniːs /) model is a scenario for the dynamical evolution of the Solar System. It is named for the location of the Côte d'Azur Observatory —where it was initially developed in 2005—in Nice, France. [1][2][3] It proposes the migration of the giant planets from an initial compact configuration into ...

  7. Accretion (astrophysics) - Wikipedia

    en.wikipedia.org/wiki/Accretion_(astrophysics)

    ALMA image of HL Tauri, a protoplanetary disk. In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, into an accretion disk. [1][2] Most astronomical objects, such as galaxies, stars, and planets, are formed by accretion processes.

  8. Discovery and exploration of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Discovery_and_exploration...

    At that time, Uranus, Neptune, nor the asteroid belts had been discovered yet. Discovery and exploration of the Solar System is observation, visitation, and increase in knowledge and understanding of Earth 's "cosmic neighborhood". [ 1 ] This includes the Sun, Earth and the Moon, the major planets Mercury, Venus, Mars, Jupiter, Saturn, Uranus ...

  9. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    Relative masses of the Solar planets. Jupiter at 71% of the total and Saturn at 21% dominate the system. Relative masses of the solid bodies of the Solar System. Earth at 48% and Venus at 39% dominate. Bodies less massive than Pluto are not visible at this scale. Relative masses of the rounded moons of the Solar System.