Astronomy and Cosmology

3705 topics in this forum

1. The Speck

   By 36grit, January 6, 2011
   • 3 replies
   • 1.3k views
   • 
   • 36grit
   • January 8, 2011

2. The cause of the storm?

   By alpha2cen, January 6, 2011
   • 6 replies
   • 1.4k views
   • 
   • alpha2cen
   • January 7, 2011

3. Toward a 21st Century Cosmology

   By budrap, January 2, 2011
   • 2 replies
   • 1.3k views
   • 
   • imatfaal
   • January 6, 2011

4. Does expansion modify the properties of space?

   By zapatos, December 24, 2010
   • 19 replies
   • 3.1k views
   • 
   • swansont
   • January 5, 2011

5. Earth - Moon - Sun are in orbital resonance ??

   By Widdekind, December 7, 2010
   • 12 replies
   • 6.1k views
   • 
   • D H
   • January 4, 2011

6. Universe mass?

   By alpha2cen, December 28, 2010
   • 7 replies
   • 1.4k views
   • 
   • alpha2cen
   • January 4, 2011

7. The Galaxy gravity distributon?

   By alpha2cen, January 1, 2011
   • 4 replies
   • 821 views
   • 
   • alpha2cen
   • January 3, 2011

8. Ineffectiveness per minute, per hour

   By Airbrush, January 1, 2011
   • 1 reply
   • 764 views
   • 
   • swansont
   • January 1, 2011

9. Could Gravity Wave detectors "hear" cosmic collisions ?

   By Widdekind, December 30, 2010
   • 2 replies
   • 759 views
   • 
   • swansont
   • December 30, 2010

10. Electric discharge in the Universe?

    By alpha2cen, December 25, 2010
    • 1 reply
    • 660 views
    • 
    • alpha2cen
    • December 27, 2010

11. lunar eclipse and solstice

    By lemur, December 25, 2010
    • 1 reply
    • 625 views
    • 
    • Moontanman
    • December 25, 2010

12. What Powers Quasars?

    By Airbrush, December 3, 2010
    • 24 replies
    • 7k views
    • 
    • insane_alien
    • December 23, 2010

13. hollow disk of space

    By michel123456, December 14, 2010
    • 16 replies
    • 3.2k views
    • 
    • Spyman
    • December 20, 2010

14. a peculiar diagram

    By michel123456, December 15, 2010
    • 6 replies
    • 1.3k views
    • 
    • michel123456
    • December 18, 2010

15. Universe Expansion Diagram 1 2 3

    By losfomot, November 16, 2010
    • 52 replies
    • 10.1k views
    • 
    • michel123456
    • December 18, 2010

16. Kepler Orbit

    By h4tt3n, December 2, 2010
    • 12 replies
    • 3.2k views
    • 
    • D H
    • December 17, 2010

17. Escape Velocity from the Earth 1 2

    By toruk, December 11, 2010
    • 44 replies
    • 7.2k views
    • 
    • lemur
    • December 17, 2010

18. Observable Universe vs Entire Universe

    By SimonWers, August 11, 2010
    • 17 replies
    • 9k views
    • 
    • Spyman
    • December 14, 2010

19. Birth of the Universe from Nothing - Bigbang Simulation!

    By icarus2, December 13, 2010
    • 0 replies
    • 1k views
    • 
    • icarus2
    • December 13, 2010

20. expanding and accelerating universe

    By Nimmer, February 9, 2010
    • 5 replies
    • 2k views
    • 
    • Pranay Sharma
    • December 12, 2010

21. Flower Constellation

    By hash, December 11, 2010
    • 0 replies
    • 711 views
    • 
    • hash
    • December 11, 2010

22. What makes supernova explode? 1 2

    By alpha2cen, December 2, 2010
    • 39 replies
    • 6.5k views
    • 
    • swansont
    • December 9, 2010

23. Echos of a bygone Aeon

    By ydoaPs, December 5, 2010
    • 6 replies
    • 2.5k views
    • 
    • Martin
    • December 8, 2010

24. Do Cosmological Neutrinos Redshift, too ?

    By Widdekind, December 6, 2010
    • 3 replies
    • 2.2k views
    • 
    • Martin
    • December 6, 2010

25. Age & Size of Closed Cosmos are related ?

    By Widdekind, December 3, 2010
    • 0 replies
    • 699 views
    • 
    • Widdekind
    • December 3, 2010