Observable universe as seen from the outside

    Caption: A diagram of the observable universe illustrating the cosmological principle.

    For the a detailed explication of the cosmological principle, see the insert below or (if not seen here) at local link / general link: cosmological_principle_scale.html: Cosmological Principle and its Size Scale.

      EOF

    For     E.A. Milne (1896--1950) the inventor of the term cosmological principle, see the figure below (local link / general link: .html).

    Images:
    1. Credit/Permission: © Andrew Colvin (AKA User:Azcolvin429), 2010 / Creative Commons CC BY-SA 3.0.
      Image link: Wikipedia: File:Observable_Universe_with_Measurements_01.png.
    2. Credit/Permission: © Subrahmanyan Chandrasekhar (1910--1995), 1939 / Uncertain, but the image is just hotlinked.
      Image link: Edward Arthur Milne (1896-1950): Mathematician, Astrophysicist, Cosmologist.
    Local file: local link: cosmological_principle.html.
    File: Cosmology file: cosmological_principle.html.