Astronomy and Cosmology

3705 topics in this forum

1. Entropy / Chaos

   By Greg Boyles, December 6, 2011
   • 8 replies
   • 2k views
   • 
   • csmyth3025
   • December 6, 2011

2. dark matter and time?

   By bwalters1, November 17, 2011
   • 2 replies
   • 2k views
   • 
   • rabe
   • December 6, 2011

3. Inflation

   By Dynamotime, December 3, 2011
   • 3 replies
   • 1.4k views
   • 
   • Widdekind
   • December 5, 2011

4. Scale of Dark Energy

   By Airbrush, November 29, 2011
   • 2 replies
   • 1.2k views
   • 
   • Widdekind
   • December 5, 2011

5. % of dark matter in a 6 billion years old universe

   By Dynamotime, December 1, 2011
   • 1 reply
   • 1.2k views
   • 
   • Dynamotime
   • December 3, 2011

6. magnetic clouds

   By 36grit, November 29, 2011
   • 0 replies
   • 688 views
   • 
   • 36grit
   • November 29, 2011

7. what we see 1 2 3

   By michel123456, November 13, 2011
   • 65 replies
   • 11.1k views
   • 
   • md65536
   • November 28, 2011

8. Inflation, the hyperbolic black-hole field effect and the fate of the universe

   By G Anthony, November 26, 2011
   • 1 reply
   • 966 views
   • 
   • G Anthony
   • November 27, 2011

9. Globular Clusters Ages in Matter-dominated Cosmos

   By Widdekind, November 26, 2011
   • 2 replies
   • 932 views
   • 
   • Widdekind
   • November 27, 2011

10. trying to understand 'Dark Matter' halos ?

    By Widdekind, November 16, 2011
    • 3 replies
    • 1.4k views
    • 
    • b1a2s3a4l5t6e7
    • November 27, 2011

11. Black Hole Core Mystery 1 2

    By EWyatt, September 13, 2011
    • 47 replies
    • 6.6k views
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    • superball
    • November 22, 2011

12. Orbit

    By morgsboi, November 21, 2011
    • 5 replies
    • 1.1k views
    • 
    • morgsboi
    • November 22, 2011

13. origins of galactic black holes

    By 36grit, October 19, 2011
    • 2 replies
    • 1.1k views
    • 
    • *puffy* japanisthebest
    • November 20, 2011

14. Faster than light?

    By thomma, October 29, 2011
    • 7 replies
    • 1.8k views
    • 
    • *puffy* japanisthebest
    • November 20, 2011

15. LRO Image question

    By mooeypoo, November 19, 2011
    • 13 replies
    • 1.8k views
    • 
    • Appolinaria
    • November 20, 2011

16. Earth burning

    By powerstar, November 17, 2011
    • 5 replies
    • 1.2k views
    • 
    • insane_alien
    • November 18, 2011

17. Surface Gravity Versus Centrifugal Force

    By Elen Sila, September 3, 2011
    • 15 replies
    • 4k views
    • 
    • Larry1957
    • November 17, 2011

18. Jupiter

    By powerstar, November 16, 2011
    • 1 reply
    • 900 views
    • 
    • imatfaal
    • November 16, 2011

19. Jupiter

    By ads8525, April 3, 2008
    • 10 replies
    • 2.4k views
    • 
    • Arch2008
    • November 16, 2011

20. 'clumpy' cosmos expands non-uniformly ??

    By Widdekind, November 13, 2011
    • 1 reply
    • 1.5k views
    • 
    • pantheory
    • November 15, 2011

21. N Dimensions

    By Ashish, February 14, 2010
    • 9 replies
    • 1.9k views
    • 
    • Sagar Gorijala
    • November 14, 2011

22. Looking at the past

    By morgsboi, November 5, 2011
    • 18 replies
    • 2.6k views
    • 
    • Summerwind
    • November 10, 2011

23. communicating with an extraterrestrial civilisation 1 2 3 4

    By JohnF, March 5, 2008
    • 77 replies
    • 10.4k views
    • 
    • Widdekind
    • November 9, 2011

24. Universe Maps

    By eaknarak, November 5, 2011
    • 1 reply
    • 990 views
    • 
    • granpa
    • November 6, 2011

25. Highest Temperature Possible

    By Airbrush, November 2, 2011
    • 19 replies
    • 4.7k views
    • 
    • Iggy
    • November 4, 2011