Astronomy and Cosmology

3714 topics in this forum

1. the Elements

   By YT2095, May 8, 2008
   • 7 replies
   • 1.4k views
   • 
   • Mr Skeptic
   • May 9, 2008

2. Red Giants

   By Fafner, May 8, 2008
   • 1 reply
   • 914 views
   • 
   • swansont
   • May 8, 2008

3. The Breadth of the Universe...

   By Luminal, May 7, 2008
   • 4 replies
   • 1.4k views
   • 
   • Klaynos
   • May 7, 2008

4. How do supermassive blackholes form?

   By Cmac22, April 29, 2008
   • 9 replies
   • 2.2k views
   • 
   • iNow
   • May 7, 2008

5. Coverting a Lunar Body into a Burning Sun

   By Exsilium, April 12, 2008
   • 11 replies
   • 1.8k views
   • 
   • CaptainPanic
   • May 7, 2008

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

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

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

   By Mag, January 23, 2008
   • 28 replies
   • 4.6k views
   • 
   • antimatter
   • May 6, 2008

8. Life on Mars and Drake's

   By Vexer, April 22, 2008
   • 11 replies
   • 1.9k views
   • 
   • Vexer
   • May 2, 2008

9. Binary Systems and Supermassive Black Holes

   By antimatter, March 20, 2008
   • 16 replies
   • 1.9k views
   • 
   • Klaynos
   • May 1, 2008

10. Sedna planet

    By copperstream, May 1, 2008
    • 3 replies
    • 1.4k views
    • 
    • Klaynos
    • May 1, 2008

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

    By CaptainHawk1, March 27, 2008
    • 19 replies
    • 2.9k views
    • 
    • Cmac22
    • April 29, 2008

12. Would you freeze in space?

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

13. light through medium

    By caalis, April 18, 2008
    • 4 replies
    • 1.7k views
    • 
    • granpa
    • April 27, 2008

14. GR put to the test...

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

15. help required

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

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

    By Martin, January 18, 2008
    • 61 replies
    • 10.5k views
    • 
    • doG
    • April 18, 2008

17. Shrinking matter.

    By igosaur, April 16, 2008
    • 11 replies
    • 2k views
    • 
    • Klaynos
    • April 18, 2008

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

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

19. Sudden Change in the moon's orbit

    By AllMyT_Shmoo, April 1, 2008
    • 4 replies
    • 1.5k views
    • 
    • Shadowwalker
    • April 17, 2008

20. Effective gravity and temperature

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

21. comets

    By ads8525, April 12, 2008
    • 10 replies
    • 1.8k views
    • 
    • Jacques
    • April 15, 2008

22. Plans for Lunar telescope

    By Royston, March 20, 2008
    • 11 replies
    • 1.7k views
    • 
    • JohnB
    • April 14, 2008

23. Water giant?

    By Daecon, April 8, 2008
    • 22 replies
    • 3.3k views
    • 
    • insane_alien
    • April 11, 2008

24. Relative Ages of Galaxies

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

25. Cosmic Ray??

    By DrP, April 7, 2008
    • 6 replies
    • 1.3k views
    • 
    • DrP
    • April 8, 2008