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  2. History of astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_astronomy

    This was the start of the Copernican Revolution. [3] The success of astronomy, compared to other sciences, was achieved because of several reasons. Astronomy was the first science to have a mathematical foundation and have sophisticated procedures such as using armillary spheres and quadrants. This provided a solid base for collecting and ...

  3. Timeline of astronomy - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_astronomy

    The first major Arabic work of astronomy is the Zij al-Sindh by Muhammad ibn Musa al-Khwarizmi. The work contains tables for the movements of the Sun, the Moon, and the five planets known at the time. The work is significant as it introduced Ptolemaic concepts into Islamic sciences. This work also marks the turning point in Arabic astronomy.

  4. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Greek astronomy is characterized from the start by seeking a rational, physical explanation for celestial phenomena. [17] In the 3rd century BC, Aristarchus of Samos estimated the size and distance of the Moon and Sun , and he proposed a model of the Solar System where the Earth and planets rotated around the Sun, now called the heliocentric ...

  5. Chronology of the universe - Wikipedia

    en.wikipedia.org/wiki/Chronology_of_the_universe

    The chronology of the universe describes the history and future of the universe according to Big Bang cosmology.. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.

  6. Scientific Revolution - Wikipedia

    en.wikipedia.org/wiki/Scientific_Revolution

    The Scientific Revolution was a series of events that marked the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology (including human anatomy) and chemistry transformed the views of society about nature.

  7. Timeline of the early universe - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_early_universe

    c. 10 −36 seconds: Electroweak epoch begins: The Universe cools down to 10 28 kelvin. The strong nuclear force becomes distinct from the electroweak force.; c. 10 −33 seconds: Space is subjected to inflation, expanding by a factor of the order of 10 26 over a time of the order of 10 −33 to 10 −32 seconds.

  8. Why did NORAD start tracking Santa Claus? It started with a ...

    www.aol.com/news/why-did-norad-start-tracking...

    NORAD began to track Santa Claus in 1955, following an accidental phone call made to the agency by a young boy interested in in speaking with Kris Kringle.

  9. Timeline of telescopes, observatories, and observing technology

    en.wikipedia.org/wiki/Timeline_of_telescopes...

    1577–80 – Taqi al-Din invents a mechanical astronomical clock that measures time in seconds, one of the most important innovations in 16th-century practical astronomy, as previous clocks were not accurate enough to be used for astronomical purposes. [13] 1577–80 – Taqi al-Din invents framed sextant [13]