Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. BennyF

    Deep-space communications relay stations

    BennyF, Sep 16, 2011 ... 3 4 5
    Replies:
    80
    Views:
    4,373
    Billy T
    Sep 23, 2011
  2. wegs

    Is dark matter responsible for life to exist?

    wegs, Jul 12, 2019 ... 4 5 6
    Replies:
    118
    Views:
    4,379
    Seattle
    Jul 24, 2019
  3. paddoboy

    One way mars trip:

    paddoboy, Jan 7, 2014 ... 3 4 5
    Replies:
    98
    Views:
    4,382
    paddoboy
    Jan 22, 2014
  4. Cyperium

    Shape of the universe

    Cyperium, Jun 7, 2008 ... 3 4 5
    Replies:
    84
    Views:
    4,393
    Cyperium
    Aug 3, 2008
  5. EndLightEnd

    Plasma Cosmology

    EndLightEnd, Jul 25, 2008 ... 2 3 4
    Replies:
    75
    Views:
    4,434
    Trippy
    Aug 8, 2008
  6. orcot

    What's the biggest object in the solar system

    orcot, Nov 15, 2007 ... 2
    Replies:
    24
    Views:
    4,450
    kaneda
    Nov 19, 2007
  7. paddoboy

    Pluto Encounter:

    paddoboy, May 11, 2015 ... 2 3
    Replies:
    53
    Views:
    4,457
    CEngelbrecht
    Dec 6, 2015
  8. common_sense_seeker

    Is MOND better than DARK MATTER for explaining spiral galaxies?

    common_sense_seeker, Sep 19, 2009 ... 2 3
    Replies:
    41
    Views:
    4,466
    common_sense_seeker
    Oct 31, 2009
  9. draqon

    Real-time satellite tracking...ISS

    draqon, Dec 3, 2007
    Replies:
    3
    Views:
    4,469
    Pauladam5991
    Mar 14, 2013
  10. Cyperium

    Slow Big Bang

    Cyperium, Sep 23, 2007 ... 2 3
    Replies:
    48
    Views:
    4,474
    Reiku
    Oct 31, 2007
  11. khan
    Locked

    Mars Settlement by 2023

    khan, Jun 2, 2012 ... 2 3 4
    Replies:
    69
    Views:
    4,489
    prometheus
    Jun 9, 2012
  12. Rick

    Mars : A water World?

    Rick, Mar 1, 2004 ... 2 3 4
    Replies:
    71
    Views:
    4,494
    Pete
    Mar 23, 2004
  13. BennyF

    Can Jupiter's atmosphere proide the fuel for space travel?

    BennyF, Sep 15, 2011
    Replies:
    10
    Views:
    4,501
    AlexG
    Sep 16, 2011
  14. THC

    crashing into stars

    THC, Jun 8, 2005
    Replies:
    19
    Views:
    4,505
    Skeptical
    Dec 16, 2010
  15. Zarkov

    Physics without einstein

    Zarkov, Feb 16, 2004 ... 2 3 4
    Replies:
    79
    Views:
    4,506
    Zarkov
    Mar 4, 2004
  16. paddoboy

    The Greatest Question:

    paddoboy, Jul 21, 2015 ... 2 3 4
    Replies:
    65
    Views:
    4,507
    Daecon
    Sep 11, 2015
  17. Reiku

    Was Tunneling What Caused Big Bang?

    Reiku, Oct 7, 2007 ... 2 3
    Replies:
    42
    Views:
    4,515
    Reiku
    Oct 8, 2007
  18. Brian Foley

    Strange Signal Comes From Alien Planet, Scientist Says

    Brian Foley, Oct 11, 2010 ... 2
    Replies:
    39
    Views:
    4,522
    dhcracker
    Oct 19, 2010
  19. IceAgeCivilizations

    What Oort Cloud?

    IceAgeCivilizations, Apr 29, 2007 ... 2 3 4
    Replies:
    69
    Views:
    4,523
    Balerion
    May 16, 2007
  20. trevor borocz johnson

    If there is intelligent life why can't we detect it?

    trevor borocz johnson, Dec 7, 2015 ... 4 5 6
    Replies:
    101
    Views:
    4,524
    river
    Jan 1, 2016
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