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  2. Astronomy - Wikipedia

    en.wikipedia.org/wiki/Astronomy

    [3] [4] [5] Based on strict dictionary definitions, "astronomy" refers to "the study of objects and matter outside the Earth's atmosphere and of their physical and chemical properties", [6] while "astrophysics" refers to the branch of astronomy dealing with "the behavior, physical properties, and dynamic processes of celestial objects and ...

  3. Historical models of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Historical_models_of_the...

    The ancient Hebrews, like all the ancient peoples of the Near East, believed the sky was a solid dome with the Sun, Moon, planets and stars embedded in it. [4] In biblical cosmology, the firmament is the vast solid dome created by God during his creation of the world to divide the primal sea into upper and lower portions so that the dry land could appear.

  4. 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 ...

  5. Eric Chaisson - Wikipedia

    en.wikipedia.org/wiki/Eric_Chaisson

    Chaisson’s research and writing have won several awards, such as the 1977 B.J. Bok Prize [19] for “original radio-astronomy discoveries,” the 1980 Smith-Weld Prize [20] for “best article by a Harvard faculty member,” a 1990 (and 1994) certificate of recognition from NASA with U.S. flag flown aboard the Space Shuttle-31 mission for “exceptional performance on the Hubble Space ...

  6. Catalogues of Fundamental Stars - Wikipedia

    en.wikipedia.org/wiki/Catalogues_of_Fundamental...

    The Spitzer Space Telescope’s infrared cameras revealing stars in the densely populated galactic center region. The Catalogue of Fundamental Stars is a series of six astrometric catalogues of high precision positional data for a small selection of stars to define a celestial reference frame, which is a standard coordinate system for measuring positions of stars.

  7. History of astronomy - Wikipedia

    en.wikipedia.org/wiki/History_of_astronomy

    The Revival of Planetary Astronomy in Carolingian and Post-Carolingian Europe. Variorum Collected Studies Series. Vol. CS 279. Ashgate. ISBN 0-86078-868-7. Hodson, F. R., ed. (1974). The Place of Astronomy in the Ancient World: A Joint Symposium of the Royal Society and the British Academy. Oxford University Press. ISBN 0-19-725944-8.

  8. 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.

  9. Two-body problem in general relativity - Wikipedia

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

    This approach is called "post-Newtonian" because the Newtonian solution for the particle orbits is often used as the initial solution. The theory can be divided into two parts: first one finds the two-body effective potential that captures the GR corrections to the Newtonian potential. Secondly, one should solve the resulting equations of motion.