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Forum: Astronomy

It's a big Universe. Talk about it here.

  1. Sticky Thread Sticky: The ULTIMATE astronomy quiz

    Started by Glom, 2005-Jun-19 12:19 AM
    176 Pages
    1 2 3 ... 176
    • Replies: 5,250
    • Views: 379,665
    2017-Jul-28, 07:46 PM Go to last post
  2. Sticky Thread Sticky: The ULTIMATE Astronomy Quiz 2

    Started by antoniseb, 2017-Aug-01 11:41 AM
    2 Pages
    1 2
    • Replies: 53
    • Views: 17,280
    2018-Apr-14, 04:06 PM Go to last post
  1. The concept of an infinite Universe

    Started by Blackhole, 2011-Dec-09 02:48 AM
    3 Pages
    1 2 3
    • Replies: 64
    • Views: 37,788
    2011-Dec-24, 10:37 PM Go to last post
  2. Spiral Model of Solar System

    Started by Robert Tulip, 2008-Oct-23 10:54 AM
    3 Pages
    1 2 3
    • Replies: 86
    • Views: 37,784
    2013-Jan-07, 12:23 PM Go to last post
  3. NASA Baffled by Unexplained Force Acting on Space Probes

    Started by ToSeek, 2008-Feb-29 06:40 PM
    14 Pages
    1 2 3 ... 14
    5 Deleted Post(s)
    • Replies: 412
    • Views: 37,422
    2010-Feb-11, 06:48 AM Go to last post
  4. Asteroid SL-617

    Started by Bug-Eyed Earl, 2004-Mar-17 12:52 AM
    3 Pages
    1 2 3
    • Replies: 69
    • Views: 34,158
    2004-May-14, 01:03 AM Go to last post
  5. Two Worlds,One Sun:A Test for CYDONIA

    Started by Electric Ashalar, 2004-Aug-11 07:33 PM
    8 Pages
    1 2 3 ... 8
    • Replies: 238
    • Views: 33,738
    2004-Oct-11, 02:52 PM Go to last post
  6. Galactic Rotation... no need for dark matter.

    Started by Don J, 2012-Apr-25 05:50 AM
    10 Pages
    1 2 3 ... 10
    • Replies: 292
    • Views: 33,458
    2012-Jul-13, 05:19 AM Go to last post
    • Replies: 22
    • Views: 33,017
    2010-Feb-07, 07:53 PM Go to last post
  7. Question Name our solar system?

    Started by Procyon, 2005-Oct-20 10:37 AM
    3 Pages
    1 2 3
    • Replies: 80
    • Views: 32,735
    2009-Apr-14, 09:27 AM Go to last post
  8. Correcting errors in the "Explore" encyclopedia

    Started by Ken G, 2014-Nov-29 03:55 PM
    7 Pages
    1 2 3 ... 7
    • Replies: 195
    • Views: 31,619
    2018-Apr-23, 05:12 PM Go to last post
  9. Equivalence Principle

    Started by Rosa Lichtenstein, 2013-Nov-20 05:29 PM
    8 Pages
    1 2 3 ... 8
    2 Deleted Post(s)
    • Replies: 226
    • Views: 31,192
    2014-Oct-24, 02:59 AM Go to last post
  10. Will Dark Matter Finally Reveal Itself?

    Started by ASTRO BOY, 2013-Feb-18 07:57 PM
    7 Pages
    1 2 3 ... 7
    1 Deleted Post(s)
    • Replies: 187
    • Views: 29,426
    2013-May-10, 12:49 PM Go to last post
  11. The Other Side of the Big Bang and Black Holes:

    Started by ASTRO BOY, 2013-Jul-27 06:24 AM
    7 Pages
    1 2 3 ... 7
    • Replies: 187
    • Views: 29,374
    2013-Aug-08, 08:12 PM Go to last post
  12. How do black holes grow if time doesn't exist in them?

    Started by MVAgusta1078RR, 2014-Apr-12 10:18 PM
    4 Pages
    1 2 3 ... 4
    black holes, supermassive, time
    • Replies: 100
    • Views: 29,304
    2014-May-15, 04:08 PM Go to last post
  13. What really are time, space and reality?

    Started by cosmocrazy, 2010-Jul-27 03:36 PM
    10 Pages
    1 2 3 ... 10
    1 Deleted Post(s)
    • Replies: 280
    • Views: 29,061
    2010-Sep-27, 12:57 AM Go to last post
  14. Olbers' paradox: Why is the night sky black?

    Started by madus, 2012-Nov-03 06:13 AM
    8 Pages
    1 2 3 ... 8
    • Replies: 220
    • Views: 28,956
    2012-Nov-22, 02:11 AM Go to last post
  15. Pluto loses status as a planet

    Started by Sticks, 2006-Aug-24 01:48 PM
    16 Pages
    1 2 3 ... 16
    1 Deleted Post(s)
    • Replies: 467
    • Views: 28,343
    2009-Feb-03, 05:24 PM Go to last post
  16. Lightbulb Hebrew Calendar before Meton

    Started by Cyberseeker, 2014-May-21 08:56 AM
    2 Pages
    1 2
    • Replies: 46
    • Views: 27,953
    2016-Apr-09, 01:50 PM Go to last post
  17. Witnessing the Big-Bang

    Started by Githyanki, 2014-Jun-20 06:17 PM
    2 Pages
    1 2
    • Replies: 48
    • Views: 27,677
    2014-Jul-17, 10:32 PM Go to last post
  18. Big Bang Bullets >

    Started by George, 2003-Nov-10 01:41 AM
    6 Pages
    1 2 3 ... 6
    • Replies: 155
    • Views: 26,624
    2005-Dec-27, 01:48 PM Go to last post
    • Replies: 24
    • Views: 26,326
    2007-Dec-29, 07:21 PM Go to last post

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