Astronomy and Cosmology

3429 topics in this forum

1. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 102 replies
   • 87807 views
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   • tinalay91
   • January 6, 2016

2. Cosmological Principle 1 2 3

   By Mordred, May 30, 2015
   • 50 replies
   • 26823 views
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   • joigus
   • May 3

3. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 23210 views
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   • swansont
   • August 3, 2018

4. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 16876 views
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   • Altruist1
   • March 26, 2016

5. Where Does Space End? It Must End Somewhere! 1 2 3 4 41

   By Edisonian, October 6, 2004
   • 1003 replies
   • 286744 views
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   • hypervalent_iodine
   • November 24, 2016

6. Expansion different in different directions 1 2 3 4 6

   By Bmpbmp1975, April 8
   • 125 replies
   • 93390 views
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   • swansont
   • April 27

7. Where does the moon rise?

   By Primarygun, July 25, 2007
   • 17 replies
   • 91747 views
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   • D H
   • January 30, 2012

8. "Shocking" video of comet ISON causes "panic"?!? 1 2 3

   By sevenseas, June 8, 2013
   • 53 replies
   • 45876 views
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   • Mr Monkeybat
   • October 3, 2013

9. Who said the Universe had a beginning? 1 2 3 4

   By Gater, August 11, 2019
   • 97 replies
   • 44240 views
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   • swansont
   • September 5, 2019

10. What is this moving light in the sky?

    By Jerry Wickey, September 5, 2013
    • 22 replies
    • 37661 views
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    • rangerx
    • July 7, 2018

11. Is space folding a good method of space travel (if it is for real) 1 2

    By Lekgolo555, February 10, 2007
    • 42 replies
    • 32710 views
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    • Feralwrath
    • January 22, 2018

12. Treasure From Asteroids 1 2

    By Airbrush, July 25, 2019
    • 36 replies
    • 31988 views
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    • Moontanman
    • October 13, 2019

13. Gravity waves and the aether 1 2 3 4 32

    By Moontanman, June 16, 2016
    • 779 replies
    • 30727 views
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    • imatfaal
    • September 6, 2016

14. How do concentrations of dark matter arise? 1 2

    By Eise, October 1, 2019
    • 46 replies
    • 24355 views
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    • Airbrush
    • October 26, 2019

15. If there is no end to the space 1 2 3 4 11

    By HamsterPower, January 14, 2011
    • 263 replies
    • 23578 views
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    • owl
    • March 24, 2011

16. I finally found an accurate article on the speed of universal expansion 1 2 3

    By Angelo, January 10
    • 58 replies
    • 20693 views
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    • MaximT
    • January 16

17. Need some astronomy help

    By CaptainHawk1, October 25, 2007
    • 6 replies
    • 19102 views
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    • grifter
    • October 27, 2007

18. Is the Universe infinite? 1 2 3 4 16

    By dordle-loddle, August 1, 2017
    • 385 replies
    • 16896 views
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    • Strange
    • August 14, 2018

19. Different responses to Fermi Paradox 1 2 3 4 6

    By Martin, July 21, 2009
    • 142 replies
    • 16822 views
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    • Widdekind
    • December 23, 2011

20. Can we see it? 1 2 3 4 9

    By michel123456, March 16, 2010
    • 206 replies
    • 16282 views
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    • Spyman
    • May 6, 2010

21. what was there before Big Bang? 1 2 3 4 7

    By nernico, June 30, 2011
    • 166 replies
    • 15517 views
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    • space noob
    • May 9, 2012

22. Is the Earth close to the center of the Universe ? 1 2

    By MaximT, January 16
    • 25 replies
    • 14639 views
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    • beecee
    • February 18

23. Thomson opacity (split from I finally found an accurate article on the speed of universal expansion) 1 2

    By TEFLing, March 1
    • 32 replies
    • 14423 views
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    • Mordred
    • March 11

24. Space Ends 1 2 3 4 9

    By zazzzoom, March 20, 2005
    • 210 replies
    • 14123 views
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    • Dave
    • September 30, 2005

25. Does gravity have an effective range?

    By pioneer, July 30, 2007
    • 13 replies
    • 13288 views
    • 
    • pioneer
    • August 19, 2007