Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. Orleander

    Asteroid to hit Mars

    Orleander, Dec 21, 2007 ... 4 5 6
    Replies:
    106
    Views:
    11,257
    blobrana
    Jan 14, 2008
  2. muncha

    Meteorite fall in Chelyabinsk!

    muncha, Feb 15, 2013 ... 4 5 6
    Replies:
    107
    Views:
    11,162
    elte
    Mar 1, 2013
  3. draqon

    Should Mars be terraformed?

    draqon, Jul 7, 2008 ... 7 8 9
    Replies:
    170
    Views:
    11,149
    Enmos
    Nov 22, 2009
  4. machiaventa

    Is there a middle to our Universe?

    machiaventa, Aug 5, 2009 ... 3 4 5
    Replies:
    88
    Views:
    11,114
    icarus2
    Oct 29, 2009
  5. paddoboy

    Warp speed space travel and GR:

    paddoboy, Aug 19, 2015 ... 5 6 7
    Replies:
    126
    Views:
    10,989
    sweetpea
    Oct 13, 2015
  6. PeteBoise

    Eintstein Is Wrong!!!!!! Read!!!

    PeteBoise, Jul 29, 2004 ... 4 5 6
    Replies:
    100
    Views:
    10,906
    Hercules Rockefeller
    Oct 25, 2004
  7. DarkDAVE

    Radius of Proton and Neutron equal or not?

    DarkDAVE, Apr 12, 2002 ... 2
    Replies:
    28
    Views:
    10,828
    DarkDAVE
    Apr 15, 2002
  8. thed

    Black Holes, fact or fiction?

    thed, Jan 17, 2002 ... 2 3
    Replies:
    45
    Views:
    10,742
    Gravage
    Apr 26, 2004
  9. zekar
    Locked

    Sun revolves around what?

    zekar, Jun 5, 2006
    Replies:
    15
    Views:
    10,724
    Communist Hamster
    Jul 20, 2006
  10. RajeshTrivedi

    Dark Energy – Required to explain a plausible mistake ?

    RajeshTrivedi, Aug 16, 2014 ... 4 5 6
    Replies:
    112
    Views:
    10,723
    paddoboy
    Sep 8, 2014
  11. Q-reeus

    A simple proof Einstein got it wrong with GR

    Q-reeus, Jul 6, 2016 ... 8 9 10
    Replies:
    197
    Views:
    10,699
    dumbest man on earth
    Jul 18, 2016
  12. PsychoticEpisode

    Light - solid, liquid or gas?

    PsychoticEpisode, Nov 4, 2005 ... 5 6 7
    Replies:
    120
    Views:
    10,568
    exchemist
    Jun 25, 2015
  13. river
    Locked

    Black Holes .

    river, Aug 11, 2019 ... 13 14 15
    Replies:
    290
    Views:
    10,371
    James R
    Aug 31, 2019
  14. 666

    Huble pics

    666, Nov 29, 1999
    Replies:
    0
    Views:
    10,323
    666
    Nov 29, 1999
  15. 85681356

    Theory of Universal Black Hole

    85681356, Jun 9, 2005
    Replies:
    6
    Views:
    10,305
    quantum_wave
    Apr 30, 2009
  16. river

    interesting things about the moon

    river, Jul 11, 2012 ... 2 3
    Replies:
    41
    Views:
    10,034
    youreyes
    Jan 6, 2013
  17. BlueMoose

    11 Mysteries Of The Moon

    BlueMoose, Feb 16, 2009 ... 2
    Replies:
    27
    Views:
    9,998
    Trippy
    Feb 25, 2009
  18. Scott Myers

    Galaxy Left Behind?

    Scott Myers, Dec 23, 2012 ... 2
    Replies:
    34
    Views:
    9,987
    brucep
    Jan 21, 2013
  19. orcot

    roswell aliens

    orcot, Apr 11, 2011 ... 6 7 8
    Replies:
    147
    Views:
    9,820
    gmilam
    May 9, 2011
  20. amraam

    Big Bang Theory Is Bang Wrong

    amraam, Nov 12, 2001 ... 4 5 6
    Replies:
    117
    Views:
    9,733
    (Q)
    Jun 4, 2005
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