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David Levy

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Topics posted by David Levy

  1.  

    Solar Neighborhood Enigma 1 2

    By David Levy, in Astronomy and Cosmology

    • 37 replies
    • 3476 views
  2.  

    Darwin approach for Universe Enigma

    By David Levy, in Speculations

    • 8 replies
    • 1524 views
  3.  

    Universe age 1 2

    By David Levy, in Speculations

    • 39 replies
    • 4354 views
  4.  

    Earth - What is the real age? 1 2 3 4 9

    By David Levy, in Speculations

    • 222 replies
    • 22682 views
  5.  

    Dark matter and Shell Theorem by Isaac Newton 1 2 3

    By David Levy, in Astronomy and Cosmology

    • 72 replies
    • 9929 views
  6.  

    Basic Concepts of modern science 1 2 3

    By David Levy, in Astronomy and Cosmology

    • 60 replies
    • 9082 views
  7.  

    Milky way galaxy mass vs. black hole mass 1 2 3

    By David Levy, in Astronomy and Cosmology

    • 65 replies
    • 7190 views
  8.  

    Dark Energy – the most mysterious matter in the Universe 1 2 3

    By David Levy, in Speculations

    • 68 replies
    • 7143 views
  9.  

    Newton Gravity for spiral galaxy 1 2 3 4 5

    By David Levy, in Speculations

    • 102 replies
    • 11295 views
  10.  

    Spiral Galaxy –How it had been formed? 1 2

    By David Levy, in Speculations

    • 45 replies
    • 4489 views
  11.  

    What is a feasible way for the nature to generate an Atom?

    By David Levy, in Speculations

    • 7 replies
    • 1606 views
  12.  

    Mass Creation, Spiral Galaxies, the Big Bang 1 2

    By David Levy, in Speculations

    • 27 replies
    • 2768 views
  13.  

    Thread Hijack - How are super-massive stars formed?

    By David Levy, in Trash Can

    • 2 replies
    • 1226 views
  14.  

    Update stady state Theory 1 2

    By David Levy, in Speculations

    • 44 replies
    • 5433 views
  15.  

    Liquid water on Mars 1 2 3 4

    By David Levy, in Astronomy and Cosmology

    • 78 replies
    • 11153 views
  16.  

    NASA Finds water on the Moon

    By David Levy, in Astronomy and Cosmology

    • 6 replies
    • 1557 views
  17.  

    Star magnetic field

    By David Levy, in Astronomy and Cosmology

    • 9 replies
    • 2035 views
  18.  

    Steady state theory 1 2 3 4 5

    By David Levy, in Speculations

    • 116 replies
    • 16153 views
  19.  

    Big Bang 1 2 3

    By David Levy, in Astronomy and Cosmology

    • 53 replies
    • 9320 views
  20.  

    Big Bang

    By David Levy, in Astronomy and Cosmology

    • 7 replies
    • 2494 views
  21.  

    Dark Matter 1 2

    By David Levy, in Speculations

    • 31 replies
    • 3938 views
  22.  

    Dark Matter

    By David Levy, in Astronomy and Cosmology

    • 2 replies
    • 1165 views
  23.  

    Dinosaurs

    By David Levy, in Evolution, Morphology and Exobiology

    • 10 replies
    • 2842 views
  24.  

    Solar system - birth

    By David Levy, in Astronomy and Cosmology

    • 10 replies
    • 1830 views
  25.  

    Star movment direction in an active galaxy

    By David Levy, in Astronomy and Cosmology

    • 16 replies
    • 1829 views
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