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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. Astroscan - Wikipedia

    en.wikipedia.org/wiki/Astroscan

    The Astroscan had a Newtonian reflector layout with a 4⅛" clear-inch (105mm) diameter f/4.2 aluminized and overcoated borosilicate glass parabolic primary mirror with a focal length of 17½ inches (445mm). [1]

  4. Astrophysics - Wikipedia

    en.wikipedia.org/wiki/Astrophysics

    Astrophysics is a science that employs the methods and principles of physics and chemistry in the study of astronomical objects and phenomena. [1] [2] As one of the founders of the discipline, James Keeler, said, astrophysics "seeks to ascertain the nature of the heavenly bodies, rather than their positions or motions in space—what they are, rather than where they are", [3] which is studied ...

  5. Astrology - Wikipedia

    en.wikipedia.org/wiki/Astrology

    [6]: 227–228 Progress is defined here as explaining new phenomena and solving existing problems, yet astrology has failed to progress having only changed little in nearly 2000 years.

  6. Satcom (satellite) - Wikipedia

    en.wikipedia.org/wiki/Satcom_(satellite)

    GE Astro Space 11 September 1992 Ariane 44LP: 1992-060B: Satcom C4 GE Astro Space 31 August 1992 Delta II (7925) 1992-057A: Satcom C5 GE Astro Space 29 May 1991 Delta II (7925) 1991-037A: Originally called Aurora 2, replaced Aurora 1 / Satcom 5 Satcom K1 RCA Astro Electronics 12 January 1986 STS-61-C 1986-003B: Satcom K2 RCA Astro Electronics

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  8. Fix problems with Games on AOL.com - AOL Help

    help.aol.com/articles/troubleshooting-games-com...

    Games on AOL.com offers hundreds of free online games. Discover solutions to common issues on Games on AOL.com and get back to playing.

  9. Amazon Astro - Wikipedia

    en.wikipedia.org/wiki/Amazon_Astro

    The Astro has visual ID and should be able to recognize different family members and send an alert if the device sees someone it does not recognize in the home. [2] In 2022, Amazon announced a pilot program connecting Astro to the Ring security system, allowing workers in a remote call centre to control Astro to investigate security alerts. [3] [4]