Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. timojin

    What color is the dark matter

    timojin, Oct 17, 2016 ... 2 3 4
    Replies:
    67
    Views:
    4,178
    Saint
    Oct 28, 2016
  2. Shadow1

    What are the true colours of planet Mars?

    Shadow1, Sep 8, 2010
    Replies:
    11
    Views:
    4,184
    Shadow1
    Sep 24, 2010
  3. gweeds

    Will we ever return to the Moon?

    gweeds, Jul 21, 2001
    Replies:
    16
    Views:
    4,199
    fsbriggs
    Aug 6, 2001
  4. timojin

    Did it bang or not

    timojin, Nov 28, 2017 ... 2 3
    Replies:
    40
    Views:
    4,203
    Schmelzer
    Nov 29, 2017
  5. Dinosaur

    BigBang: Why extrapolate to singularity?

    Dinosaur, Oct 18, 2015 ... 3 4 5
    Replies:
    91
    Views:
    4,204
    arfa brane
    Oct 25, 2015
  6. H-kon

    The 12th Planet - Zacharia Zitchin

    H-kon, Jul 13, 1999
    Replies:
    8
    Views:
    4,209
    H-kon
    Aug 10, 1999
  7. Cortex_Colossum

    The universe - infinite or finite

    Cortex_Colossum, Apr 1, 2009 ... 2 3 4
    Replies:
    72
    Views:
    4,237
    quantum_wave
    Apr 27, 2009
  8. arauca

    rethinking how the universe began

    arauca, Jul 26, 2013 ... 2 3
    Replies:
    56
    Views:
    4,243
    river
    Sep 14, 2013
  9. Spellbound

    One Quantum World or Two?

    Spellbound, Jul 28, 2014 ... 2 3
    Replies:
    47
    Views:
    4,277
    Spellbound
    Nov 14, 2015
  10. markl323

    How do we know for sure Galaxies are moving away from each other?

    markl323, Sep 29, 2011
    Replies:
    13
    Views:
    4,284
    markl323
    Sep 30, 2011
  11. ScaryMonster

    Sizes of Planets & Stars

    ScaryMonster, Nov 6, 2009
    Replies:
    9
    Views:
    4,292
    ScaryMonster
    Nov 8, 2009
  12. Spellbound

    Is the universe an expanding ball?

    Spellbound, Jul 20, 2014 ... 2 3 4
    Replies:
    69
    Views:
    4,294
    brucep
    Aug 24, 2014
  13. Kumar

    Effects of Cosmic Rays

    Kumar, May 18, 2004 ... 2 3 4
    Replies:
    63
    Views:
    4,298
    hotsexyangelprincess
    Jul 7, 2004
  14. atlantis

    Theory of Infinity

    atlantis, Jan 18, 2000 ... 2 3
    Replies:
    50
    Views:
    4,312
    Gravage
    Oct 6, 2003
  15. Alpha

    Hawking resolves black hole information paradox

    Alpha, Jul 15, 2004 ... 2 3
    Replies:
    45
    Views:
    4,313
    blobrana
    Jun 14, 2008
  16. kaneda
    Locked

    Big Bang or Big Goof?

    kaneda, Dec 3, 2007 ... 3 4 5
    Replies:
    90
    Views:
    4,319
    (Q)
    Dec 22, 2007
  17. timojin

    Milky way galaxy

    timojin, Nov 20, 2015 ... 2 3 4
    Replies:
    71
    Views:
    4,324
    LaurieAG
    May 11, 2016
  18. Zarkov

    Spin Gravity...Ether of Magnetism

    Zarkov, Aug 5, 2002 ... 2
    Replies:
    37
    Views:
    4,332
    1100f
    Mar 17, 2004
  19. paddoboy

    What is the Big Bang Theory?

    paddoboy, Dec 18, 2015 ... 3 4 5
    Replies:
    88
    Views:
    4,351
    Waiter_2001
    Dec 31, 2015
  20. danshawen

    Help Us Stay Informed on Mainstream Cosmology

    danshawen, Nov 18, 2015 ... 3 4 5
    Replies:
    81
    Views:
    4,359
    PhysBang
    Nov 29, 2015
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