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  2. 24 Astronomy Facts You Never Learned in School

    www.aol.com/lifestyle/24-astronomy-facts-never...

    From a bar in the clouds to finding more water from the Moon, outer space is constantly surprising us. The post 24 Astronomy Facts You Never Learned in School appeared first on Reader's Digest.

  3. Portal:Astronomy/Did you know - Wikipedia

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

    Portal:Astronomy/Did you know/1 ... that 12th-century Muslim scientist Al-Khazini, who proposed a theory of gravitation long before Isaac Newton, was, in his early life, a slave of the Seljuq Turks?... that Kepler-47c is a circumbinary planet orbiting in the habitable zone of Kepler-47, a binary star system?

  4. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Historically, optical astronomy, which has been also called visible light astronomy, is the oldest form of astronomy. [58] Images of observations were originally drawn by hand. In the late 19th century and most of the 20th century, images were made using photographic equipment.

  5. Lists of astronomical objects - Wikipedia

    en.wikipedia.org/wiki/Lists_of_astronomical_objects

    List of Solar System objects most distant from the Sun; List of Solar System objects by size; Lists of geological features of the Solar System; List of natural satellites (moons) Lists of small Solar System bodies; Lists of comets; List of meteor showers; Minor planets. List of minor planets. List of exceptional asteroids; List of minor planet ...

  6. 135 Interesting Facts for Kids and Adults to Blow Your Mind - AOL

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    Interesting Facts for Kids. 66. Scotland's national animal is a unicorn. 67. Tigers have striped skin, not just striped fur. 68. A shrimp’s heart isn’t in its chest; it’s located near the ...

  7. William Kenneth Hartmann - Wikipedia

    en.wikipedia.org/wiki/William_Kenneth_Hartmann

    William Kenneth Hartmann (born June 6, 1939) is an American planetary scientist, artist, author, and writer.He was the first to convince the scientific mainstream that the Earth had once been hit by a planet sized body (), creating both the Moon and the Earth's 23.5° tilt.

  8. Henry Norris Russell - Wikipedia

    en.wikipedia.org/wiki/Henry_Norris_Russell

    There were two volumes: the first was The Solar System and the second was Astrophysics and Stellar Astronomy. The textbook popularized the idea that a star's properties (radius, surface temperature, luminosity , etc.) were largely determined by the star's mass and chemical composition, which became known as the Vogt–Russell theorem (including ...

  9. Outline of astronomy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_astronomy

    The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the universe beyond Earth, including its formation and development , and the evolution, physics , chemistry , meteorology , and motion of celestial objects (such as galaxies , planets , etc.) and phenomena that originate outside the ...