Astronomy and Cosmology

3711 topics in this forum

1. N Dimensions

   By Ashish, February 14, 2010
   • 9 replies
   • 2k views
   • 
   • Sagar Gorijala
   • November 14, 2011

2. Looking at the past

   By morgsboi, November 5, 2011
   • 18 replies
   • 2.7k views
   • 
   • Summerwind
   • November 10, 2011

3. communicating with an extraterrestrial civilisation 1 2 3 4

   By JohnF, March 5, 2008
   • 77 replies
   • 11k views
   • 
   • Widdekind
   • November 9, 2011

4. Universe Maps

   By eaknarak, November 5, 2011
   • 1 reply
   • 1k views
   • 
   • granpa
   • November 6, 2011

5. Highest Temperature Possible

   By Airbrush, November 2, 2011
   • 19 replies
   • 4.9k views
   • 
   • Iggy
   • November 4, 2011

6. another article on the cosmo constant not bein constant

   By 36grit, November 2, 2011
   • 2 replies
   • 1.2k views
   • 
   • 36grit
   • November 3, 2011

7. A galaxie from embrio to fetus

   By 36grit, October 28, 2011
   • 6 replies
   • 1.8k views
   • 
   • Realitycheck
   • November 1, 2011

8. black hole and dark matter interaction

   By hewj11, October 22, 2011
   • 4 replies
   • 1.4k views
   • 
   • mathematic
   • October 28, 2011

9. Bell Island Boom

   By morgsboi, October 27, 2011
   • 0 replies
   • 2.4k views
   • 
   • morgsboi
   • October 27, 2011

10. Stellar cores - how hot really?

    By seriously disabled, October 19, 2011
    • 9 replies
    • 2.1k views
    • 
    • Airbrush
    • October 27, 2011

11. Lightning from cosmic rays

    By 36grit, October 26, 2011
    • 5 replies
    • 1.8k views
    • 
    • questionposter
    • October 27, 2011

12. Black WHole

    By 0.0001 mass, October 22, 2011
    • 19 replies
    • 2.9k views
    • 
    • 0.0001 mass
    • October 26, 2011

13. Black Hole Power

    By transhuman, October 25, 2011
    • 6 replies
    • 1.7k views
    • 
    • baric
    • October 25, 2011

14. Who the heck is Pascual Jordan?

    By Aristarchus in Exile, October 21, 2011
    • 3 replies
    • 2k views
    • 
    • DrRocket
    • October 24, 2011

15. Space

    By pink_trike, February 22, 2011
    • 17 replies
    • 3.4k views
    • 
    • Aristarchus in Exile
    • October 22, 2011

16. Dark Matter

    By degree451, October 10, 2011
    • 7 replies
    • 1.6k views
    • 
    • Bart
    • October 20, 2011

17. time travel

    By The 321 Anomaly, July 15, 2011
    • 24 replies
    • 4.8k views
    • 
    • Aristarchus in Exile
    • October 20, 2011

18. How big would a star have to be to instantly explode?

    By 36grit, October 20, 2011
    • 2 replies
    • 1.3k views
    • 
    • baric
    • October 20, 2011

19. dust and gas around black holes

    By 36grit, October 18, 2011
    • 6 replies
    • 1.8k views
    • 
    • *puffy* japanisthebest
    • October 19, 2011

20. Heavy elements ?

    By Dart15, October 13, 2011
    • 8 replies
    • 2k views
    • 
    • Genius13
    • October 18, 2011

21. Why Don't All Moons Orbit Retrograde?

    By Elen Sila, September 5, 2011
    • 11 replies
    • 2.5k views
    • 
    • matterdoc
    • October 18, 2011

22. Heliocentric theory disproved

    By alanpartridge, March 11, 2011
    • 3 replies
    • 3.7k views
    • 
    • michel123456
    • October 17, 2011

23. my thoughts on these theories... 1 2

    By jorden, September 28, 2011
    • 44 replies
    • 6.4k views
    • 
    • Phi for All
    • October 17, 2011

24. Low Gravity effects on animals

    By deltabomber, October 17, 2011
    • 1 reply
    • 823 views
    • 
    • Schrödinger's hat
    • October 17, 2011

25. First stars from collision-triggered collapses ?

    By Widdekind, October 4, 2011
    • 1 reply
    • 724 views
    • 
    • Widdekind
    • October 9, 2011