Astronomy, Exobiology, & Cosmology

amateur astronomy, astrophysics, exoscience

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  1. paddoboy

    The Big Bang and Inflation:

    paddoboy, Jul 20, 2015 ... 4 5 6
    Replies:
    108
    Views:
    7,418
    origin
    Aug 20, 2015
  2. TruthSeeker

    "Goldilocks" Planet Found, Could Possibly Support Human Life

    TruthSeeker, Sep 30, 2010 ... 4 5 6
    Replies:
    108
    Views:
    11,793
    Fraggle Rocker
    Oct 25, 2010
  3. kaneda

    The speed of life

    kaneda, Nov 13, 2007 ... 4 5 6
    Replies:
    108
    Views:
    6,379
    draqon
    Jan 19, 2008
  4. muncha

    Meteorite fall in Chelyabinsk!

    muncha, Feb 15, 2013 ... 4 5 6
    Replies:
    107
    Views:
    11,158
    elte
    Mar 1, 2013
  5. btimsah

    NASA Obligated To Hide ETI?

    btimsah, Feb 2, 2006 ... 4 5 6
    Replies:
    107
    Views:
    6,906
    Mr Anonymous
    Mar 12, 2006
  6. Electro522

    Black Holes: Key to the beginning and end of the universe?

    Electro522, Nov 2, 2011 ... 4 5 6
    Replies:
    106
    Views:
    5,439
    KilljoyKlown
    Nov 8, 2011
  7. Dr Mabuse

    Scientists hear a mystery roar coming from deep space

    Dr Mabuse, Jan 9, 2009 ... 4 5 6
    Replies:
    106
    Views:
    7,285
    gluon
    Feb 1, 2009
  8. Orleander

    Asteroid to hit Mars

    Orleander, Dec 21, 2007 ... 4 5 6
    Replies:
    106
    Views:
    11,250
    blobrana
    Jan 14, 2008
  9. Saint

    Why thinking about migrating to other planets?

    Saint, Oct 16, 2017 ... 4 5 6
    Replies:
    105
    Views:
    7,657
    DaveC426913
    Nov 28, 2017
  10. geordief

    James Webb Space Telescope

    geordief, Dec 24, 2021 ... 4 5 6
    Replies:
    104
    Views:
    14,733
    Michael 345
    Oct 2, 2022
  11. Dragonrider

    Time travel

    Dragonrider, Apr 26, 2006 ... 4 5 6
    Replies:
    104
    Views:
    6,163
    once mortal
    Jun 18, 2007
  12. Bxmkr

    interstellar travel

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

    Universe from Nothing.

    praty, Apr 27, 2011 ... 4 5 6
    Replies:
    103
    Views:
    13,502
    Stryder
    Aug 10, 2011
  14. Vega

    Capsules go up and shuttles come down!

    Vega, Sep 8, 2006 ... 4 5 6
    Replies:
    103
    Views:
    5,562
    orcot
    May 18, 2007
  15. Zarkov

    Electrodynamic Spin Gravity

    Zarkov, Jul 2, 2003 ... 4 5 6
    Replies:
    103
    Views:
    5,900
    Zarkov
    Sep 17, 2003
  16. RJBeery
    Locked

    Debate: Do black holes exist?

    RJBeery, Aug 10, 2010 ... 4 5 6
    Replies:
    102
    Views:
    11,339
    D H
    Aug 24, 2010
  17. Xelasnave.1947

    Inflation and big bang theory

    Xelasnave.1947, Nov 6, 2016 ... 4 5 6
    Replies:
    101
    Views:
    5,029
    Write4U
    Nov 17, 2016
  18. 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:
    4,522
    river
    Jan 1, 2016
  19. Hermann

    Could Jupiter become a second Sun?

    Hermann, Sep 18, 2005 ... 4 5 6
    Replies:
    101
    Views:
    44,758
    Captain Kremmen
    Oct 10, 2011
  20. mananmater

    Mars or the Moon????

    mananmater, Dec 21, 2009 ... 4 5 6
    Replies:
    101
    Views:
    8,399
    orcot
    Feb 26, 2010
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