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  2. Astronomy Today - Wikipedia

    en.wikipedia.org/wiki/Astronomy_Today

    Astronomy Today was a Canadian science television series which aired on CBC Television in 1959. Premise. F. A. Kaempffer, a University of British Columbia physics ...

  3. 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.

  4. Timeline of cosmological theories - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_cosmological...

    5th century BCE – Parmenides is credited to be the first Greek who declared that the Earth is spherical and is situated in the centre of the universe. [ 13 ] 5th century BCE – Pythagoreans as Philolaus believed the motion of planets is caused by an out-of-sight "fire" at the centre of the universe (not the Sun) that powers them, and Sun and ...

  5. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    Astronomy is a natural science that studies celestial objects and the phenomena ... 24, 60, 360) is still being used today through having been broadly adopted for ...

  6. John Charles Duncan - Wikipedia

    en.wikipedia.org/wiki/John_Charles_Duncan

    John Charles Duncan (February 8, 1882 – September 10, 1967) was an American astronomer.His work spanned astronomy’s transition from a focus on observation and location measurement to astrophysics.

  7. 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.

  8. Two-body problem in general relativity - Wikipedia

    en.wikipedia.org/wiki/Two-body_problem_in...

    Solutions are also used to describe the motion of binary stars around each other, and estimate their gradual loss of energy through gravitational radiation. General relativity describes the gravitational field by curved space-time; the field equations governing this curvature are nonlinear and therefore difficult to solve in a closed form .

  9. Dinah L. Moché - Wikipedia

    en.wikipedia.org/wiki/Dinah_L._Moché

    Dinah L. Moché (24 October 1936 - 22 May 2018) was the author of several popular science books mainly dealing with Astronomy. She studied for a BA at Harvard University and a PhD at Columbia University. She worked for many years as a Professor of Physics & Astronomy, Queensborough Community College of the City University of New York. [1] [2]