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  2. Geocentric model - Wikipedia

    en.wikipedia.org/wiki/Geocentric_model

    A few Orthodox Jewish leaders maintain a geocentric model of the universe based on the aforementioned Biblical verses and an interpretation of Maimonides to the effect that he ruled that the Earth is orbited by the Sun. [57] [58] The Lubavitcher Rebbe also explained that geocentrism is defensible based on the theory of relativity, which ...

  3. Heliocentrism - Wikipedia

    en.wikipedia.org/wiki/Heliocentrism

    Herschel was the first to propose a model of the universe based on observation and measurement. [ 160 ] At that time, the dominant assumption in cosmology was that the Milky Way was the entire universe, an assumption that has since been proven wrong with observations. [ 161 ]

  4. Copernican heliocentrism - Wikipedia

    en.wikipedia.org/wiki/Copernican_heliocentrism

    The Copernican model replaced Ptolemy's equant circles with more epicycles. 1,500 years of Ptolemy's model helped to create a more accurate estimate of the planets' motions for Copernicus. [31] That is the main reason that Copernicus' system had even more epicycles than Ptolemy's.

  5. Scientists release newly accurate map of all the matter in ...

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    The research suggests matter is not as “clumpy” as would be expected based on the current best model. ... 800-290-4726 more ways to reach us. Mail. Sign in. Subscriptions; Animals.

  6. Scientists unveil ‘most accurate virtual representation of ...

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  7. Observational cosmology - Wikipedia

    en.wikipedia.org/wiki/Observational_cosmology

    More recently, the 2dF Galaxy Redshift Survey determined the large-scale structure of one section of the Universe, measuring z-values for over 220,000 galaxies; data collection was completed in 2002, and the final data set was released 30 June 2003. [21]

  8. Deferent and epicycle - Wikipedia

    en.wikipedia.org/wiki/Deferent_and_epicycle

    A heliocentric system would require more intricate systems to compensate for the shift in reference point. It was not until Kepler's proposal of elliptical orbits that such a system became increasingly more accurate than a mere epicyclical geocentric model. [9] The basic simplicity of the Copernican universe, from Thomas Digges' book

  9. Physical cosmology - Wikipedia

    en.wikipedia.org/wiki/Physical_cosmology

    An alternative view to extend the Big Bang model, suggesting the universe had no beginning or singularity and the age of the universe is infinite, has been presented. [ 19 ] [ 20 ] [ 21 ] In September 2023, astrophysicists questioned the overall current view of the universe , in the form of the Standard Model of Cosmology , based on the latest ...