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  2. List of unsolved problems in astronomy - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    This article is a list of notable unsolved problems in astronomy. Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results. Experimental problems result from inability to test or investigate a proposed theory.

  3. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The Clay Mathematics Institute officially designated the title Millennium Problem for the seven unsolved mathematical problems, the Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier–Stokes existence and smoothness, P versus NP problem, Riemann hypothesis, Yang–Mills existence and mass gap, and the Poincaré conjecture at the ...

  4. Celestial mechanics - Wikipedia

    en.wikipedia.org/wiki/Celestial_mechanics

    Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space. Historically, celestial mechanics applies principles of physics (classical mechanics) to astronomical objects, such as stars and planets, to produce ephemeris data.

  5. 101 Science Trivia Questions and Answers To Test Your ... - AOL

    www.aol.com/101-science-trivia-questions-answers...

    The trivia ranges from easy to hard and there are questions for kids and adults alike! Related: 324 Best Trivia Questions and Answers to Jumpstart Your Fun Game Night. 101 Best Science Trivia ...

  6. A Question and Answer Guide to Astronomy - Wikipedia

    en.wikipedia.org/wiki/A_Question_and_Answer...

    A Question and Answer Guide to Astronomy is a book about astronomy and cosmology, and is intended for a general audience. The book was written by Pierre-Yves Bely , Carol Christian , and Jean-Rene Roy , and published in English by Cambridge University Press in 2010.

  7. Category:Unsolved problems in astronomy - Wikipedia

    en.wikipedia.org/wiki/Category:Unsolved_problems...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  8. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets.

  9. National Standard Examination in Astronomy - Wikipedia

    en.wikipedia.org/wiki/National_Standard...

    The paper consists of 48 single correct type and 12 multiple correct type questions. It has a time limit of 2 hours. There are questions from high school level physics, mathematics and some questions from general astronomy.

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