Astronomy and Cosmology

3686 topics in this forum

1. Branes and Dark Energy

   By lawman, February 21, 2010
   • 0 replies
   • 564 views
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   • lawman
   • February 21, 2010

2. Unidentified 500 km crater on Oberon moon ??

   By Widdekind, March 12, 2010
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   • 955 views
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   • Widdekind
   • March 12, 2010

3. Calculating age of the universe using redshift?

   By zeion, March 16, 2010
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   • 603 views
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   • zeion
   • March 16, 2010

4. question about critical density

   By shakes, March 27, 2010
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   • 703 views
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   • shakes
   • March 27, 2010

5. I am in need of ...

   By ewmon, March 28, 2010
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   • 582 views
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   • ewmon
   • March 28, 2010

6. the abyss

   By japan rocks/andromeda, March 28, 2010
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   • 667 views
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   • japan rocks/andromeda
   • March 28, 2010

7. Yet an other look at, how things might work.

   By Simpleton, March 30, 2010
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   • 670 views
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   • Simpleton
   • March 30, 2010

8. Observing from Mauna Kea

   By Robin Hood, April 3, 2010
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   • 738 views
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   • Robin Hood
   • April 3, 2010

9. Simulating various spacetime topologies ?

   By Widdekind, April 7, 2010
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   • 557 views
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   • Widdekind
   • April 7, 2010

10. The wmap image, how can it be accurate?

    By epsilonbeta, April 17, 2010
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    • 603 views
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    • epsilonbeta
    • April 17, 2010

11. Planck Analysis of the Orion Constellation

    By Radical Edward, April 26, 2010
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    • 943 views
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    • Radical Edward
    • April 26, 2010

12. FYI ESA's Herschel

    By Arch2008, May 11, 2010
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    • 823 views
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    • Arch2008
    • May 11, 2010

13. Need advice regarding telescope magnification

    By Mukilab, May 12, 2010
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    • 722 views
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    • Mukilab
    • May 12, 2010

14. Planet detection by natural laser emission

    By Daumic, June 27, 2010
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    • 699 views
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    • Daumic
    • June 27, 2010

15. modified field Hawking

    By nalxhal, August 29, 2010
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    • 709 views
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    • nalxhal
    • August 29, 2010

16. Fantastic new sunspot photo

    By Dan6541, September 1, 2010
    • 0 replies
    • 727 views
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    • Dan6541
    • September 1, 2010

17. The expanding universe; chicken or egg?

    By pioneer, September 17, 2010
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    • 1.8k views
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    • pioneer
    • September 17, 2010

18. Virtual aperture using two telescopes. HOW?

    By netrat, September 18, 2010
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    • 658 views
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    • netrat
    • September 18, 2010

19. Space beer headed for zero gravity bar

    By needimprovement, September 30, 2010
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    • 633 views
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    • needimprovement
    • September 30, 2010

20. FYI: World Space Week

    By Arch2008, October 4, 2010
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    • 604 views
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    • Arch2008
    • October 4, 2010

21. Looking for some good beginner books

    By Danimals, October 28, 2010
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    • 794 views
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    • Danimals
    • October 28, 2010

22. Age & Size of Closed Cosmos are related ?

    By Widdekind, December 3, 2010
    • 0 replies
    • 660 views
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    • Widdekind
    • December 3, 2010

23. Flower Constellation

    By hash, December 11, 2010
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    • 673 views
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    • hash
    • December 11, 2010

24. Birth of the Universe from Nothing - Bigbang Simulation!

    By icarus2, December 13, 2010
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    • 1k views
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    • icarus2
    • December 13, 2010

25. planet orbit, the Earth?

    By alpha2cen, January 10, 2011
    • 0 replies
    • 655 views
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    • alpha2cen
    • January 10, 2011