Astronomy and Cosmology

3705 topics in this forum

1. Neat supernova mechanism for more powerful explosions

   By Martin, September 30, 2010
   • 2 replies
   • 1.2k views
   • 
   • swansont
   • February 5, 2011

2. f(T)

   By researcher1, February 5, 2011
   • 8 replies
   • 1k views
   • 
   • researcher1
   • February 5, 2011

3. Can X-rays be reflected?

   By helium, February 3, 2011
   • 4 replies
   • 7k views
   • 
   • lemur
   • February 3, 2011

4. red to blue doppler affect

   By 36grit, January 27, 2011
   • 6 replies
   • 1.2k views
   • 
   • alpha2cen
   • January 31, 2011

5. Escape velocity for solar system and galaxy

   By Baby Astronaut, May 6, 2009
   • 13 replies
   • 10k views
   • 
   • k nester
   • January 31, 2011

6. cosmic radiation background from BB

   By 36grit, January 19, 2011
   • 12 replies
   • 1.6k views
   • 
   • Mr Skeptic
   • January 28, 2011

7. Questions: Research for Non-Scientific Purpose

   By BuddingAuthor, January 27, 2011
   • 4 replies
   • 1.2k views
   • 
   • Mr Skeptic
   • January 27, 2011

8. Theory of dark matter is based on brightness

   By CaptainPanic, January 24, 2011
   • 14 replies
   • 2.8k views
   • 
   • Janus
   • January 27, 2011

9. Statistical analysis of cosmic expansion

   By CaptainPanic, January 24, 2011
   • 3 replies
   • 1k views
   • 
   • imatfaal
   • January 26, 2011

10. What type of undergrad study would allow me to do Planetary Science

    By Tokage, January 25, 2011
    • 3 replies
    • 901 views
    • 
    • Marat
    • January 25, 2011

11. Earth atmosphere thickness and gravity of the Sun and moon.

    By alpha2cen, January 24, 2011
    • 2 replies
    • 1.8k views
    • 
    • D H
    • January 24, 2011

12. Just because a star is 13b lya doesn't mean it is 13b years old

    By Realitycheck, December 25, 2010
    • 9 replies
    • 2.2k views
    • 
    • Spyman
    • January 24, 2011

13. Stellar system precession?

    By THX-1138, January 24, 2011
    • 2 replies
    • 941 views
    • 
    • Spyman
    • January 24, 2011

14. Light bending, Dark Matter

    By alpha2cen, January 8, 2011
    • 11 replies
    • 2.6k views
    • 
    • amber r shaffer
    • January 22, 2011

15. Dust explosion in the desert?

    By alpha2cen, January 21, 2011
    • 1 reply
    • 756 views
    • 
    • insane_alien
    • January 21, 2011

16. A 2nd Sun?

    By King, North TX, January 21, 2011
    • 13 replies
    • 3.4k views
    • 
    • King, North TX
    • January 21, 2011

17. 1/137 fine structure variable?

    By 36grit, January 19, 2011
    • 4 replies
    • 1.5k views
    • 
    • 36grit
    • January 21, 2011

18. Cause of the magnetic fields of the Earth?

    By alpha2cen, January 18, 2011
    • 13 replies
    • 1.9k views
    • 
    • alpha2cen
    • January 21, 2011

19. Does Galiosphere exist?-The Galaxy Heliosphere

    By alpha2cen, January 17, 2011
    • 0 replies
    • 684 views
    • 
    • alpha2cen
    • January 17, 2011

20. Q: re: simple Newtonian System-Mass estimator ?

    By Widdekind, January 16, 2011
    • 0 replies
    • 1.2k views
    • 
    • Widdekind
    • January 16, 2011

21. FOUND METEORITE

    By eelyeroc, January 12, 2011
    • 2 replies
    • 4.8k views
    • 
    • Spyman
    • January 13, 2011

22. Does the Sun have an Orbit?

    By Equilibrium, January 11, 2011
    • 2 replies
    • 3.6k views
    • 
    • alpha2cen
    • January 12, 2011

23. Space/TIme

    By 36grit, December 15, 2010
    • 9 replies
    • 1.9k views
    • 
    • IM Egdall
    • January 11, 2011

24. planet orbit, the Earth?

    By alpha2cen, January 10, 2011
    • 0 replies
    • 686 views
    • 
    • alpha2cen
    • January 10, 2011

25. Reviving a Planet

    By nrocha20, September 30, 2009
    • 22 replies
    • 7.3k views
    • 
    • Taffer
    • January 9, 2011