Astronomy and Cosmology

3688 topics in this forum

1. Galactic structure

   By smooth, March 30, 2008
   • 5 replies
   • 1k views
   • 
   • Klaynos
   • April 1, 2008

2. Star chart help!!

   By qwe)k, March 27, 2008
   • 0 replies
   • 765 views
   • 
   • qwe)k
   • March 27, 2008

3. Information Leaking from Black Holes

   By antimatter, March 22, 2008
   • 11 replies
   • 1.6k views
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   • antimatter
   • March 25, 2008

4. radar signal from Earth to Mercury and back

   By ads8525, March 24, 2008
   • 2 replies
   • 4.3k views
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   • 5614
   • March 24, 2008

5. Which will it be, South Africa or Australia?

   By ecoli, September 28, 2006
   • 3 replies
   • 1.1k views
   • 
   • ecoli
   • March 24, 2008

6. Hi... Look forward to talking with a lot of you

   By K-Kool, March 23, 2008
   • 6 replies
   • 1.2k views
   • 
   • K-Kool
   • March 23, 2008

7. Space Fabric Causing Orbits

   By antimatter, March 20, 2008
   • 24 replies
   • 3.1k views
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   • abskebabs
   • March 23, 2008

8. Playing with the Drake Equation

   By JohnF, March 11, 2008
   • 7 replies
   • 1.5k views
   • 
   • antimatter
   • March 21, 2008

9. Quantum cosmology

   By fafalone, November 7, 2002
   • 6 replies
   • 1.6k views
   • 
   • antimatter
   • March 21, 2008

10. The Location of Celestial Objects

    By Slinkey, March 12, 2008
    • 23 replies
    • 2.1k views
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    • Klaynos
    • March 20, 2008

11. Expansion speeds can be faster than light--T or F? 1 2 3

    By Martin, January 18, 2008
    • 52 replies
    • 5.8k views
    • 
    • Eureko
    • March 19, 2008

12. Physical evidence for another universe?

    By Reaper, November 30, 2007
    • 11 replies
    • 1.7k views
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    • Riogho
    • March 18, 2008

13. Janna Levin publishing cosmology podcast

    By bascule, March 17, 2008
    • 0 replies
    • 1k views
    • 
    • bascule
    • March 17, 2008

14. Total Solar Eclipse Shanghai 2009

    By jerrywickey, March 17, 2008
    • 0 replies
    • 736 views
    • 
    • jerrywickey
    • March 17, 2008

15. 1Kg mass = Universe??

    By Daecon, March 15, 2008
    • 1 reply
    • 1.2k views
    • 
    • Martin
    • March 15, 2008

16. Degrees of Arc

    By ads8525, March 13, 2008
    • 10 replies
    • 3.3k views
    • 
    • swansont
    • March 14, 2008

17. Gravity vs Inertia

    By Cmac22, March 13, 2008
    • 5 replies
    • 1.8k views
    • 
    • Cmac22
    • March 14, 2008

18. Universe is 156 billion LY across

    By Realitycheck, March 2, 2008
    • 12 replies
    • 1.5k views
    • 
    • jackson33
    • March 13, 2008

19. problem related to normal forces

    By amit chauhan, March 12, 2008
    • 1 reply
    • 644 views
    • 
    • Cmac22
    • March 12, 2008

20. How can the rings of Saturn exist?

    By CaptainPanic, February 28, 2008
    • 9 replies
    • 1.6k views
    • 
    • antimatter
    • March 12, 2008

21. Holding anti-matter 1 2

    By Dark matter, March 3, 2008
    • 32 replies
    • 3.3k views
    • 
    • antimatter
    • March 12, 2008

22. Almost a straight line

    By kaneda, March 7, 2008
    • 12 replies
    • 1.4k views
    • 
    • swansont
    • March 11, 2008

23. Spinning Singularities?

    By Riogho, March 3, 2008
    • 21 replies
    • 2.4k views
    • 
    • Martin
    • March 11, 2008

24. What happened before the Big Bang? (professional journal style)

    By Martin, September 8, 2007
    • 17 replies
    • 2.8k views
    • 
    • Martin
    • March 9, 2008

25. The Atlas of the Universe

    By Reaper, March 5, 2008
    • 5 replies
    • 1.3k views
    • 
    • iNow
    • March 8, 2008