Astronomy and Cosmology

3709 topics in this forum

1. FTL via the entering and exiting of universes possessing dimensions in excess of 3

   By Calabi-Yau, May 6, 2008
   • 2 replies
   • 822 views
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   • Calabi-Yau
   • May 6, 2008

2. How can we know the shape of the Universe? 1 2

   By Mag, January 23, 2008
   • 28 replies
   • 4.2k views
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   • antimatter
   • May 6, 2008

3. Life on Mars and Drake's

   By Vexer, April 22, 2008
   • 11 replies
   • 1.8k views
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   • Vexer
   • May 2, 2008

4. Binary Systems and Supermassive Black Holes

   By antimatter, March 20, 2008
   • 16 replies
   • 1.7k views
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   • Klaynos
   • May 1, 2008

5. Sedna planet

   By copperstream, May 1, 2008
   • 3 replies
   • 1.3k views
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   • Klaynos
   • May 1, 2008

6. What the heck is that thing next to the Moon???

   By CaptainHawk1, March 27, 2008
   • 19 replies
   • 2.7k views
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   • Cmac22
   • April 29, 2008

7. Would you freeze in space?

   By layman77, April 27, 2008
   • 3 replies
   • 4.7k views
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   • insane_alien
   • April 27, 2008

8. light through medium

   By caalis, April 18, 2008
   • 4 replies
   • 1.6k views
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   • granpa
   • April 27, 2008

9. GR put to the test...

   By Royston, April 24, 2008
   • 0 replies
   • 791 views
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   • Royston
   • April 24, 2008

10. help required

    By chitrangda, April 23, 2008
    • 0 replies
    • 771 views
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    • chitrangda
    • April 23, 2008

11. The universe could be infinite in spatial volume and matter content. T or F? 1 2 3

    By Martin, January 18, 2008
    • 61 replies
    • 9.8k views
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    • doG
    • April 18, 2008

12. Shrinking matter.

    By igosaur, April 16, 2008
    • 11 replies
    • 1.8k views
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    • Klaynos
    • April 18, 2008

13. Just for a conversation to see where this takes off to!

    By Shadowwalker, April 18, 2008
    • 2 replies
    • 1.1k views
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    • Klaynos
    • April 18, 2008

14. Sudden Change in the moon's orbit

    By AllMyT_Shmoo, April 1, 2008
    • 4 replies
    • 1.4k views
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    • Shadowwalker
    • April 17, 2008

15. Effective gravity and temperature

    By pioneer, April 16, 2008
    • 2 replies
    • 956 views
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    • D H
    • April 17, 2008

16. comets

    By ads8525, April 12, 2008
    • 10 replies
    • 1.7k views
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    • Jacques
    • April 15, 2008

17. Plans for Lunar telescope

    By Royston, March 20, 2008
    • 11 replies
    • 1.6k views
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    • JohnB
    • April 14, 2008

18. Water giant?

    By Daecon, April 8, 2008
    • 22 replies
    • 3.1k views
    • 
    • insane_alien
    • April 11, 2008

19. Relative Ages of Galaxies

    By Tooz, April 2, 2008
    • 5 replies
    • 2.1k views
    • 
    • Jacques
    • April 11, 2008

20. Cosmic Ray??

    By DrP, April 7, 2008
    • 6 replies
    • 1.2k views
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    • DrP
    • April 8, 2008

21. Expanding distance

    By Riogho, April 5, 2008
    • 9 replies
    • 1.6k views
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    • insane_alien
    • April 7, 2008

22. Galactic structure

    By smooth, March 30, 2008
    • 5 replies
    • 1.1k views
    • 
    • Klaynos
    • April 1, 2008

23. Star chart help!!

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

24. Information Leaking from Black Holes

    By antimatter, March 22, 2008
    • 11 replies
    • 1.7k views
    • 
    • antimatter
    • March 25, 2008

25. radar signal from Earth to Mercury and back

    By ads8525, March 24, 2008
    • 2 replies
    • 4.4k views
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    • 5614
    • March 24, 2008