Astronomy and Space

1,485 topics in this forum

1. Cosmic joke: Hubble's law 1 2 3

   By lbiar, June 1, 2010
   • 39 replies
   • 7.5k views
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   • lbiar
   • June 22, 2010

2. "de sitter effect" and cosmology history 1 2 3

   By quantumtopology, May 7, 2010
   • 39 replies
   • 8.2k views
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   • quantumtopology
   • June 13, 2010

3. Gravity Emerges From Neutrinos ?

   By Rade, June 8, 2010
   • 0 replies
   • 1.2k views
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   • Rade
   • June 8, 2010

4. Origin of the Universe,,,,Bang or no Bang 1 2 3 4 52

   By Harry Costas, September 3, 2006
   • 879 replies
   • 102.2k views
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   • modest
   • June 2, 2010

5. Black holes and the expanding universe

   By jason200669, May 13, 2010
   • 5 replies
   • 1.5k views
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   • modest
   • May 14, 2010

6. Surface to orbit spacecraft discussion from prometheuspan’s intro thread 1 2

   By Pyrotex, April 22, 2010
   • 33 replies
   • 7.4k views
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   • Pyrotex
   • May 13, 2010

7. Aliens Poll 1 2 3 4 23

   By Buffy, April 24, 2005
   • 374 replies
   • 49.3k views
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   • Moontanman
   • May 5, 2010

8. How Big is the Universe 1 2

   By theTribster, January 26, 2010
   • 18 replies
   • 3.5k views
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   • modest
   • May 2, 2010

9. Causes of Big Bang

   By Time_Travel, May 1, 2010
   • 5 replies
   • 1.9k views
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   • Tormod
   • May 1, 2010

10. Relationship of Time vs Gravity. 1 2

    By Taer, April 26, 2010
    • 20 replies
    • 7.7k views
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    • Taer
    • May 1, 2010

11. Is fire necessary for technology? 1 2

    By Moontanman, April 20, 2010
    • 28 replies
    • 3.5k views
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    • Moontanman
    • April 24, 2010

12. The Drake Equation Revisited 1 2

    By TheBigDog, August 19, 2009
    • 22 replies
    • 5.6k views
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    • prometheuspan
    • April 22, 2010

13. How can gravity escape a black hole? 1 2 3

    By modest, September 24, 2008
    • 50 replies
    • 26.1k views
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    • modest
    • April 19, 2010

14. Magnetic / Electric sail propulsion ?

    By scotter59, April 8, 2010
    • 8 replies
    • 2k views
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    • scotter59
    • April 12, 2010

15. How would be our Universe if Einstein was right?

    By Time_Travel, March 29, 2010
    • 11 replies
    • 2k views
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    • Time_Travel
    • April 1, 2010

16. Big Bang vs the shape of the universe

    By peter, March 20, 2010
    • 8 replies
    • 5k views
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    • William H. Depperman
    • March 28, 2010

17. How could you alter time?? Is time an existance??

    By buddyzen, September 12, 2008
    • 7 replies
    • 6.5k views
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    • sup330
    • March 24, 2010

18. At what redshift does energy density of matter equal energy density of radiation?

    By zeion, March 15, 2010
    • 7 replies
    • 7.1k views
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    • Little Bang
    • March 21, 2010

19. Calculating age of the universe using redshift?

    By zeion, March 16, 2010
    • 3 replies
    • 9.4k views
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    • modest
    • March 17, 2010

20. Show me your UNIVERSE!!!

    By spaceends, December 19, 2009
    • 6 replies
    • 1.8k views
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    • Dd'sEvilTwin
    • March 6, 2010

21. Digesting the Galactic Big MAC

    By Hasanuddin, June 11, 2009
    • 6 replies
    • 2.9k views
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    • Hasanuddin
    • February 23, 2010

22. Sky Park

    By paigetheoracle, February 17, 2010
    • 0 replies
    • 884 views
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    • paigetheoracle
    • February 17, 2010

23. Sirius research group claims about Earth's precession

    By Michael Mooney, August 21, 2009
    • 15 replies
    • 12.3k views
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    • yukonjak
    • January 31, 2010

24. Another Space Elevator Concept 1 2 3 4

    By Kayra, March 2, 2006
    • 67 replies
    • 15.3k views
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    • CraigD
    • January 25, 2010

25. Universal Scale 1 2 3

    By REASON, July 6, 2008
    • 47 replies
    • 9.8k views
    • 
    • REASON
    • January 22, 2010