Astronomy and Cosmology

3713 topics in this forum

1. how can u say that the universe is expanding?

   By swaha, July 22, 2009
   • 10 replies
   • 1.5k views
   • 
   • One of the Few
   • July 24, 2009

2. My Theory About the Moon

   By CDizzle, July 21, 2009
   • 5 replies
   • 1.4k views
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   • Mokele
   • July 24, 2009

3. Jupiter Hit by Comet or Something

   By Airbrush, July 23, 2009
   • 0 replies
   • 692 views
   • 
   • Airbrush
   • July 23, 2009

4. Aurora and the colour red.

   By Richard_Healy, July 19, 2009
   • 5 replies
   • 1.4k views
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   • Richard_Healy
   • July 23, 2009

5. Earth ex -- moon ?

   By JHAQ, July 2, 2009
   • 13 replies
   • 2.1k views
   • 
   • VedekPako
   • July 21, 2009

6. great pics of saturn!

   By bombus, June 24, 2009
   • 3 replies
   • 1.3k views
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   • CDizzle
   • July 21, 2009

7. why can't we send a rocket like a dozen galaxies away?

   By rocketman420, July 20, 2009
   • 13 replies
   • 2.2k views
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   • insane_alien
   • July 21, 2009

8. Gas Giants

   By rocketman421, July 21, 2009
   • 3 replies
   • 1.1k views
   • 
   • rocketman421
   • July 21, 2009

9. Light properties in curved space

   By purintjp, July 16, 2009
   • 8 replies
   • 1.6k views
   • 
   • purintjp
   • July 20, 2009

10. have we ever seen a galaxy or star form

    By AlphaBeta, June 27, 2009
    • 16 replies
    • 10k views
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    • Blue Fire
    • July 20, 2009

11. Sky Server

    By PhysicsGroupie, July 14, 2009
    • 0 replies
    • 777 views
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    • PhysicsGroupie
    • July 14, 2009

12. Methane implies Biology ?? 1 2

    By Widdekind, May 31, 2009
    • 42 replies
    • 8.6k views
    • 
    • John Cuthber
    • July 13, 2009

13. Expanding universe versus galactic collision

    By buzzinfinity, July 9, 2009
    • 13 replies
    • 2k views
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    • Royston
    • July 12, 2009

14. Nukes in space. 1 2

    By Leader Bee, July 7, 2009
    • 26 replies
    • 3.2k views
    • 
    • insane_alien
    • July 8, 2009

15. Elliptical Orbit- Why?

    By Theophrastus, July 6, 2009
    • 14 replies
    • 2.2k views
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    • swansont
    • July 7, 2009

16. cosmic microwave confusion

    By inkliing, July 6, 2009
    • 0 replies
    • 831 views
    • 
    • inkliing
    • July 6, 2009

17. Expanding a singularity

    By pioneer, July 5, 2009
    • 2 replies
    • 1.2k views
    • 
    • Martin
    • July 5, 2009

18. Looking for some good books.

    By hewj11, June 25, 2009
    • 6 replies
    • 1.4k views
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    • Airbrush
    • July 1, 2009

19. Six billion solar mass black hole in nearby Virgo cluster

    By Martin, June 9, 2009
    • 15 replies
    • 2.7k views
    • 
    • Martin
    • June 22, 2009

20. Chocolate in our Sky

    By Tolmosoff, June 18, 2009
    • 4 replies
    • 1.1k views
    • 
    • hewj11
    • June 21, 2009

21. Gravity Wells steal Energy & Mass ??

    By Widdekind, June 9, 2009
    • 7 replies
    • 1.5k views
    • 
    • Widdekind
    • June 19, 2009

22. Multiple Star Formation

    By VedekPako, June 10, 2009
    • 1 reply
    • 919 views
    • 
    • Ophiolite
    • June 12, 2009

23. Lunar impact:

    By Jacques, June 11, 2009
    • 0 replies
    • 750 views
    • 
    • Jacques
    • June 11, 2009

24. my Moon Pictures. 1 2

    By YT2095, October 12, 2008
    • 25 replies
    • 5.6k views
    • 
    • Syntho-sis
    • June 9, 2009

25. Sightings and Observation Database?

    By mooeypoo, June 6, 2009
    • 6 replies
    • 1.1k views
    • 
    • mooeypoo
    • June 8, 2009