Astronomy and Cosmology

3686 topics in this forum

1. Science Comedian Riffs on Hydrogen and Helium

   By sciencecomedian, May 9, 2009
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   • 640 views
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   • sciencecomedian
   • May 9, 2009

2. Entropy and Expansion

   By Eric0728, May 10, 2009
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   • 627 views
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   • Eric0728
   • May 10, 2009

3. Earth's Rotational Axis as Related to the Sun (2nd question)

   By SwampeastMike, May 10, 2009
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   • 720 views
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   • SwampeastMike
   • May 10, 2009

4. More accurate distance mez for cosmology (SciAm item)

   By Martin, May 23, 2009
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   • 728 views
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   • Martin
   • May 23, 2009

5. Open Clusters age into "Moving Groups"

   By Widdekind, June 7, 2009
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   • 717 views
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   • Widdekind
   • June 7, 2009

6. Lunar impact:

   By Jacques, June 11, 2009
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   • 671 views
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   • Jacques
   • June 11, 2009

7. cosmic microwave confusion

   By inkliing, July 6, 2009
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   • 764 views
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   • inkliing
   • July 6, 2009

8. Sky Server

   By PhysicsGroupie, July 14, 2009
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   • 711 views
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   • PhysicsGroupie
   • July 14, 2009

9. Jupiter Hit by Comet or Something

   By Airbrush, July 23, 2009
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   • 634 views
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   • Airbrush
   • July 23, 2009

10. Solar Eclipse Video

    By Robin Hood, July 25, 2009
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    • 830 views
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    • Robin Hood
    • July 25, 2009

11. Galactic Magnetic Fields & Rotation Curves

    By Widdekind, September 3, 2009
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    • 2k views
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    • Widdekind
    • September 3, 2009

12. ESO site

    By Arch2008, September 17, 2009
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    • 634 views
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    • Arch2008
    • September 17, 2009

13. Ice on Mars, 1- 3 meters below surface

    By Martin, September 26, 2009
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    • 827 views
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    • Martin
    • September 26, 2009

14. Whether I have made opening?

    By Krupin, October 3, 2009
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    • 796 views
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    • Krupin
    • October 3, 2009

15. Surgestions about the entropy of a pulsat.universe.

    By Christian Feldm, October 15, 2009
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    • 717 views
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    • Christian Feldm
    • October 15, 2009

16. The Perpetual Black Donut Theory

    By Lkreyna2, October 19, 2009
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    • 818 views
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    • Lkreyna2
    • October 19, 2009

17. Solution of several astronomical riddles

    By Ivan Gorelik, October 19, 2009
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    • 906 views
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    • Ivan Gorelik
    • October 19, 2009

18. Simple alternative to Dark Energy

    By john hunter, November 5, 2009
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    • 672 views
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    • john hunter
    • November 5, 2009

19. Dark Matter initial fluctuations (?)

    By Widdekind, December 15, 2009
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    • 728 views
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    • Widdekind
    • December 15, 2009

20. Electromagnetic Re-Entry Heat Shield

    By JoeOh, January 11, 2010
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    • 1.8k views
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    • JoeOh
    • January 11, 2010

21. Martian "forest"

    By Arch2008, January 14, 2010
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    • 666 views
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    • Arch2008
    • January 14, 2010

22. Magnetic lines in space?

    By Fozzie, January 15, 2010
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    • 650 views
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    • Fozzie
    • January 15, 2010

23. Nice supercomputer sim of the formation of a small galaxy

    By Martin, January 18, 2010
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    • 765 views
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    • Martin
    • January 18, 2010

24. We're getting farther from the Great Attractor (anyone have details on this?)

    By Martin, January 30, 2010
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    • 1.4k views
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    • Martin
    • January 30, 2010

25. Lectures on inflation and cosmological perturbations

    By ajb, February 2, 2010
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    • 788 views
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    • ajb
    • February 2, 2010