Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. RickyH

    This is only a theory in the works of the universe's creation

    RickyH, Dec 2, 2005 ... 2 3 4
    Replies:
    70
    Views:
    9,716
    RickyH
    May 24, 2011
  2. kaneda

    What is space?

    kaneda, Sep 25, 2008 ... 6 7 8
    Replies:
    159
    Views:
    9,713
    AlphaNumeric
    Oct 8, 2008
  3. paddoboy

    BLACK HOLES Tutorial based on observations and GR

    paddoboy, Sep 9, 2015 ... 5 6 7
    Replies:
    135
    Views:
    9,688
    PhysBang
    Nov 29, 2015
  4. johnahmed

    How Many stars have Planets ?

    johnahmed, Feb 6, 2006 ... 2 3
    Replies:
    42
    Views:
    9,679
    draqon
    Feb 17, 2006
  5. paddoboy

    Black holes, White Holes and Baby Universes:

    paddoboy, Aug 13, 2013 ... 2 3 4
    Replies:
    78
    Views:
    9,626
    Spellbound
    Jan 3, 2016
  6. Bxmkr

    interstellar travel

    Bxmkr, May 19, 1999 ... 4 5 6
    Replies:
    103
    Views:
    9,531
    Billy T
    Nov 23, 2013
  7. KennyJC

    30 Billion Trillion Stars

    KennyJC, May 29, 2005 ... 3 4 5
    Replies:
    98
    Views:
    9,513
    Red Devil
    Oct 28, 2005
  8. pluto2

    Why can't the universe be infinite big?

    pluto2, Dec 17, 2011 ... 3 4 5
    Replies:
    92
    Views:
    9,477
    garbonzo
    Apr 9, 2012
  9. machiaventa

    Photons VS.Higgs-boson particle

    machiaventa, Jul 9, 2012 ... 2 3 4
    Replies:
    74
    Views:
    9,383
    hansda
    Sep 7, 2012
  10. dumbest man on earth

    Solar System 'traverses all of the spiral arms of the Milky Way during 225my orbit ?!

    dumbest man on earth, Aug 5, 2014 ... 6 7 8
    Replies:
    140
    Views:
    9,356
    paddoboy
    Aug 20, 2014
  11. BlackRazor

    Why Do 8 Other Planets Exist?

    BlackRazor, Nov 24, 2006 ... 2
    Replies:
    30
    Views:
    9,226
    Roman
    Dec 3, 2006
  12. paddoboy

    The Story of the Universe: : Tutorial :

    paddoboy, Oct 10, 2015 ... 7 8 9
    Replies:
    177
    Views:
    9,198
    paddoboy
    Oct 25, 2015
  13. Cthulhu

    Alert NEWS:COLUMBIA BREAKS UP!

    Cthulhu, Feb 1, 2003 ... 9 10 11
    Replies:
    209
    Views:
    8,928
    ElectricFetus
    Feb 8, 2003
  14. paddoboy

    Invisible Dark Matter: Scientists have come up empty-handed.

    paddoboy, Jul 21, 2016 ... 8 9 10
    Replies:
    182
    Views:
    8,865
    DaveC426913
    Jul 29, 2016
  15. Gravage

    Do electromagnetic waves ever stop,dissipate where they cease to exist forever?

    Gravage, Sep 21, 2005 ... 2
    Replies:
    32
    Views:
    8,840
    Gravage
    Oct 11, 2005
  16. Caleb
    Locked

    Gravity is just Inertia (or is it?) -- the 4th Dimension

    Caleb, Jun 25, 2001 ... 2
    Replies:
    28
    Views:
    8,837
    (Q)
    Nov 12, 2004
  17. Norsefire

    The big bang is not logical

    Norsefire, Dec 13, 2007 ... 4 5 6
    Replies:
    117
    Views:
    8,770
    kaneda
    Apr 22, 2008
  18. Harro
    Locked

    Infinate and Eternal Universe theory

    Harro, Nov 10, 2008 ... 2
    Replies:
    36
    Views:
    8,765
    James R
    Jul 22, 2011
  19. paddoboy

    The Moon or Mars:

    paddoboy, May 20, 2015 ... 5 6 7
    Replies:
    129
    Views:
    8,757
    paddoboy
    Jul 24, 2015
  20. s0meguy

    A circular railgun in space to propel objects to other solar systems?

    s0meguy, May 29, 2011 ... 2
    Replies:
    34
    Views:
    8,699
    wlminex
    Aug 12, 2011
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