Astronomy and Cosmology

3714 topics in this forum

1. Light speed... 1 2 3 4 5

   By SockCymbal, January 29, 2004
   • 103 replies
   • 15.2k views
   • 
   • JohnB
   • February 12, 2007

2. The Universe, Never ending, Never Starting

   By dude2k5, February 4, 2007
   • 5 replies
   • 1.5k views
   • 
   • Norman Albers
   • February 11, 2007

3. Causes of surface tension?

   By weknowthewor, February 10, 2007
   • 6 replies
   • 1.4k views
   • 
   • Bignose
   • February 10, 2007

4. The universe is infinite and eternal. There is no god.

   By ZGSON, January 27, 2007
   • 1 reply
   • 1k views
   • 
   • Phi for All
   • January 27, 2007

5. Question conserning Neutron stars

   By reyam200, January 4, 2007
   • 11 replies
   • 2.3k views
   • 
   • Norman Albers
   • January 24, 2007

6. Could we detect a nuclear explosion near a nearby star?

   By Neil9327, January 20, 2007
   • 3 replies
   • 1.1k views
   • 
   • [Tycho?]
   • January 20, 2007

7. "Pillars of Creation" in Nebula dead, but article wrong?

   By padren, January 10, 2007
   • 2 replies
   • 1.1k views
   • 
   • Spyman
   • January 10, 2007

8. Question on Comets and Asteroids

   By the_EEPER, January 23, 2006
   • 4 replies
   • 1.5k views
   • 
   • [Tycho?]
   • January 5, 2007

9. the bending of light

   By gib65, January 4, 2007
   • 1 reply
   • 885 views
   • 
   • swansont
   • January 5, 2007

10. Leap year problem?

    By YT2095, December 30, 2006
    • 6 replies
    • 1.5k views
    • 
    • swansont
    • January 3, 2007

11. the secret behind artificial gravity? 1 2

    By dstebbins, November 30, 2006
    • 31 replies
    • 4.2k views
    • 
    • entwined
    • December 29, 2006

12. Big Bang Blasted

    By Edward Duffy, December 28, 2006
    • 3 replies
    • 1.3k views
    • 
    • Sisyphus
    • December 28, 2006

13. conversion factor: apparent magnitude to footcandles?

    By chilehed, December 27, 2006
    • 7 replies
    • 2k views
    • 
    • chilehed
    • December 28, 2006

14. The start of a black hole

    By Dan, December 14, 2006
    • 15 replies
    • 2.5k views
    • 
    • Quantoman
    • December 22, 2006

15. landing a job in astronomy.

    By dstebbins, December 21, 2006
    • 2 replies
    • 1.1k views
    • 
    • dstebbins
    • December 21, 2006

16. Different size stars

    By Dan, December 17, 2006
    • 6 replies
    • 1.6k views
    • 
    • weknowthewor
    • December 20, 2006

17. Studying Astronomy

    By Dan, December 20, 2006
    • 2 replies
    • 1k views
    • 
    • Dan
    • December 20, 2006

18. Telescopes

    By bacchen, December 16, 2006
    • 10 replies
    • 2.4k views
    • 
    • Spyman
    • December 19, 2006

19. Progress in Sun modeling

    By Royston, October 31, 2006
    • 3 replies
    • 1.1k views
    • 
    • Spyman
    • December 18, 2006

20. Re-Post

    By us2u, December 6, 2006
    • 10 replies
    • 1.7k views
    • 
    • us2u
    • December 9, 2006

21. Big Bang

    By JHAQ, October 26, 2006
    • 12 replies
    • 2.7k views
    • 
    • Martin
    • November 30, 2006

22. How the heck did the universe begin? 1 2

    By MidnightFox, November 16, 2006
    • 35 replies
    • 4.9k views
    • 
    • jackson33
    • November 27, 2006

23. How fast is Earth growing?

    By h4tt3n, November 18, 2006
    • 22 replies
    • 4.3k views
    • 
    • [Tycho?]
    • November 23, 2006

24. Black hole charge?

    By Gilded, November 10, 2006
    • 13 replies
    • 2k views
    • 
    • Guest_Jim*
    • November 11, 2006

25. Hubble Constant maybe wrong

    By Guest_Jim*, November 11, 2006
    • 1 reply
    • 2k views
    • 
    • Martin
    • November 11, 2006