Astronomy and Cosmology

3709 topics in this forum

1. Solar radiation and Earth orbit

   By alpha2cen, February 6, 2011
   • 2 replies
   • 1.2k views
   • 
   • D H
   • February 6, 2011

2. Earth gravity effect on the moon surface?

   By alpha2cen, February 6, 2011
   • 2 replies
   • 865 views
   • 
   • insane_alien
   • February 6, 2011

3. New Kepler Discoveries!

   By Airbrush, February 4, 2011
   • 1 reply
   • 767 views
   • 
   • IM Egdall
   • February 5, 2011

4. The Greatest Books in Astronomy?

   By ExploreScience, February 5, 2011
   • 1 reply
   • 738 views
   • 
   • IM Egdall
   • February 5, 2011

5. Neat supernova mechanism for more powerful explosions

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

6. f(T)

   By researcher1, February 5, 2011
   • 8 replies
   • 1.1k views
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   • researcher1
   • February 5, 2011

7. Can X-rays be reflected?

   By helium, February 3, 2011
   • 4 replies
   • 7.1k views
   • 
   • lemur
   • February 3, 2011

8. red to blue doppler affect

   By 36grit, January 27, 2011
   • 6 replies
   • 1.3k views
   • 
   • alpha2cen
   • January 31, 2011

9. Escape velocity for solar system and galaxy

   By Baby Astronaut, May 6, 2009
   • 13 replies
   • 10.1k views
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   • k nester
   • January 31, 2011

10. cosmic radiation background from BB

    By 36grit, January 19, 2011
    • 12 replies
    • 1.7k views
    • 
    • Mr Skeptic
    • January 28, 2011

11. Questions: Research for Non-Scientific Purpose

    By BuddingAuthor, January 27, 2011
    • 4 replies
    • 1.3k views
    • 
    • Mr Skeptic
    • January 27, 2011

12. Theory of dark matter is based on brightness

    By CaptainPanic, January 24, 2011
    • 14 replies
    • 2.9k views
    • 
    • Janus
    • January 27, 2011

13. Statistical analysis of cosmic expansion

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

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

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

15. 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

16. 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
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    • Spyman
    • January 24, 2011

17. Stellar system precession?

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

18. Light bending, Dark Matter

    By alpha2cen, January 8, 2011
    • 11 replies
    • 2.7k views
    • 
    • amber r shaffer
    • January 22, 2011

19. Dust explosion in the desert?

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

20. A 2nd Sun?

    By King, North TX, January 21, 2011
    • 13 replies
    • 3.5k views
    • 
    • King, North TX
    • January 21, 2011

21. 1/137 fine structure variable?

    By 36grit, January 19, 2011
    • 4 replies
    • 1.6k views
    • 
    • 36grit
    • January 21, 2011

22. Cause of the magnetic fields of the Earth?

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

23. Does Galiosphere exist?-The Galaxy Heliosphere

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

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

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

25. FOUND METEORITE

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