Astronomy and Cosmology

3713 topics in this forum

1. How near can we be to a black hole?

   By Airbrush, September 13, 2011
   • 3 replies
   • 1.2k views
   • 
   • CaptainPanic
   • September 19, 2011

2. Kepler-16b; a newly discovered planet that orbits two Suns

   By Weirdmaskman, September 17, 2011
   • 0 replies
   • 1.7k views
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   • Weirdmaskman
   • September 17, 2011

3. Mordehai Milgrom Discovered the Hyperbolic Black-Hole Galactic Gravitational Field Effect

   By Gary Anthony Kent, September 15, 2011
   • 1 reply
   • 1.3k views
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   • swansont
   • September 15, 2011

4. Unusual surface feature on dwarf planet Pluto

   By instigator, September 8, 2011
   • 6 replies
   • 2k views
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   • Realitycheck
   • September 13, 2011

5. about expanding of universe 1 2

   By URAIN, July 29, 2011
   • 43 replies
   • 7.6k views
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   • csmyth3025
   • September 13, 2011

6. tracing MWG Mass via Halo GCs vs. Disk MCs ?

   By Widdekind, September 10, 2011
   • 0 replies
   • 1.3k views
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   • Widdekind
   • September 10, 2011

7. Light after Sight?

   By ansurette, September 8, 2011
   • 1 reply
   • 986 views
   • 
   • Realitycheck
   • September 8, 2011

8. Tidal Friction As A Source Of Heat

   By Elen Sila, September 8, 2011
   • 0 replies
   • 1.6k views
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   • Elen Sila
   • September 8, 2011

9. Critique of the Universe

   By G Anthony, September 8, 2011
   • 1 reply
   • 941 views
   • 
   • swansont
   • September 8, 2011

10. Many of the therapies of alternative cosmology really work too

    By G Anthony, September 8, 2011
    • 0 replies
    • 708 views
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    • G Anthony
    • September 8, 2011

11. Big bang / Big crunch 1 2

    By DevilSolution, May 11, 2011
    • 29 replies
    • 6k views
    • 
    • csmyth3025
    • September 7, 2011

12. Gravity

    By science worm, August 28, 2011
    • 8 replies
    • 2.4k views
    • 
    • csmyth3025
    • September 6, 2011

13. Why do bigger planets have shorter days?

    By dstebbins, August 26, 2011
    • 3 replies
    • 13.4k views
    • 
    • khaled
    • September 5, 2011

14. Big Bang

    By Realitycheck, September 3, 2011
    • 6 replies
    • 1.9k views
    • 
    • csmyth3025
    • September 4, 2011

15. how big is the universe?

    By science fan, June 20, 2011
    • 18 replies
    • 3.8k views
    • 
    • csmyth3025
    • September 4, 2011

16. Question about Mars core

    By supermanpj4444, August 27, 2011
    • 6 replies
    • 1.8k views
    • 
    • baric
    • September 4, 2011

17. effects of Metallicity on stars ?

    By Widdekind, August 23, 2011
    • 3 replies
    • 4.1k views
    • 
    • Enthalpy
    • September 2, 2011

18. Density of the sun's interior

    By Realitycheck, August 31, 2011
    • 2 replies
    • 1.9k views
    • 
    • imatfaal
    • September 1, 2011

19. SUPERNICHTS?

    By Aguirre, August 8, 2011
    • 5 replies
    • 2.1k views
    • 
    • IM Egdall
    • August 31, 2011

20. Orbital Resonances

    By Elen Sila, August 30, 2011
    • 3 replies
    • 1.8k views
    • 
    • csmyth3025
    • August 31, 2011

21. Why Is Finding The Higgs essential to the Standard Model?

    By boronbrad, August 30, 2011
    • 3 replies
    • 1.3k views
    • 
    • MigL
    • August 30, 2011

22. Are BHs orbited, at Event Horizon, by "light rings" ?

    By Widdekind, August 18, 2011
    • 5 replies
    • 1.8k views
    • 
    • pantheory
    • August 26, 2011

23. De-orbiting Asteroids to earth's moon

    By Widdekind, April 27, 2011
    • 17 replies
    • 5.4k views
    • 
    • Widdekind
    • August 26, 2011

24. Was The CMB Ever Visible?

    By Keydar, August 23, 2011
    • 7 replies
    • 4.2k views
    • 
    • MigL
    • August 25, 2011

25. Astrophysical Jets driven by Magnetic Fields ?

    By Widdekind, August 24, 2011
    • 0 replies
    • 1.1k views
    • 
    • Widdekind
    • August 24, 2011