Astronomy and Cosmology

3709 topics in this forum

1. How old is Mercurys surface?

   By vertigonight, April 1, 2005
   • 4 replies
   • 1k views
   • 
   • Newtonian
   • April 2, 2005

2. Does Mercury rotate 88 times per Orbit?

   By vertigonight, April 1, 2005
   • 3 replies
   • 969 views
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   • Ophiolite
   • April 1, 2005

3. The Sun and its Gravity

   By Johnny5, April 1, 2005
   • 10 replies
   • 1.5k views
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   • Johnny5
   • April 1, 2005

4. APOD Discovers Water on Mars!

   By Pangloss, April 1, 2005
   • 0 replies
   • 754 views
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   • Pangloss
   • April 1, 2005

5. earth and moon proportionality

   By Guest staranova, March 31, 2005
   • 13 replies
   • 2k views
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   • AzurePhoenix
   • April 1, 2005

6. Preferred reference frame

   By J.C.MacSwell, March 21, 2005
   • 9 replies
   • 2k views
   • 
   • Johnny5
   • March 29, 2005

7. General relativity equation question

   By Johnny5, March 29, 2005
   • 8 replies
   • 1.3k views
   • 
   • Johnny5
   • March 29, 2005

8. Decisive Answer Please......

   By us.2u, March 29, 2005
   • 15 replies
   • 1.7k views
   • 
   • blike
   • March 29, 2005

9. Rippling Crab Nebula

   By Martin, March 27, 2005
   • 8 replies
   • 1.8k views
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   • swansont
   • March 28, 2005

10. What temperature is space? 1 2

    By onemind, March 25, 2005
    • 34 replies
    • 3.6k views
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    • J.C.MacSwell
    • March 28, 2005

11. Why space isnt 3000 kelvin

    By Martin, March 27, 2005
    • 2 replies
    • 1k views
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    • Martin
    • March 27, 2005

12. Time

    By us.2u, March 26, 2005
    • 4 replies
    • 983 views
    • 
    • Sayonara
    • March 27, 2005

13. Speed of gravity faster than light?

    By us.2u, March 25, 2005
    • 19 replies
    • 2.8k views
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    • Ophiolite
    • March 26, 2005

14. The Big Freeze?

    By KholdStunner, March 11, 2005
    • 22 replies
    • 3.6k views
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    • swansont
    • March 26, 2005

15. Multi-verse

    By crzykllrghst, March 24, 2005
    • 6 replies
    • 1.4k views
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    • KholdStunner
    • March 26, 2005

16. 2 Universe interaction

    By Proton Head, November 18, 2004
    • 10 replies
    • 1.9k views
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    • Ophiolite
    • March 25, 2005

17. a flat universe? 1 2 3

    By infoseeker, March 5, 2005
    • 59 replies
    • 6.2k views
    • 
    • crzykllrghst
    • March 25, 2005

18. Example, please (Scale Factor)

    By revprez, March 22, 2005
    • 9 replies
    • 1.8k views
    • 
    • revprez
    • March 24, 2005

19. Pioneer... neutrino layer?

    By 5614, March 23, 2005
    • 0 replies
    • 909 views
    • 
    • 5614
    • March 23, 2005

20. Hubble volume

    By ensonik, March 3, 2005
    • 8 replies
    • 3.3k views
    • 
    • swansont
    • March 23, 2005

21. The Great Wall of galaxy clusters

    By mustang292, March 22, 2005
    • 0 replies
    • 1.1k views
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    • mustang292
    • March 22, 2005

22. Removal of BH singularity by LQG

    By Martin, March 22, 2005
    • 8 replies
    • 1.6k views
    • 
    • Johnny5
    • March 22, 2005

23. Dark Energy/Matter

    By BenSon, March 15, 2005
    • 11 replies
    • 1.9k views
    • 
    • Guest
    • March 22, 2005

24. Does Venus' outer atmosphere protects microbes from ultraviolet radiation?

    By vertigonight, March 19, 2005
    • 2 replies
    • 931 views
    • 
    • [Tycho?]
    • March 21, 2005

25. Universe originally Solid Mass?

    By mustang292, March 20, 2005
    • 1 reply
    • 845 views
    • 
    • Ophiolite
    • March 20, 2005