Astronomy and Cosmology

3708 topics in this forum

1. Current News in the exiting field of Astronomy and Cosmology

   By X-matter, April 21, 2009
   • 3 replies
   • 1.3k views
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   • The Bear's Key
   • May 12, 2009

2. measuring God in Planck lengths

   By Rainman, August 27, 2009
   • 3 replies
   • 1.3k views
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   • swansont
   • August 27, 2009

3. The State of a Black hole

   By King108, June 14, 2017
   • 6 replies
   • 1.3k views
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   • beecee
   • June 16, 2017

4. naive "guess" at star's temperature.

   By ajb, May 13, 2007
   • 6 replies
   • 1.3k views
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   • John Cuthber
   • May 14, 2007

5. WorldJumpDay

   By Jok, March 28, 2006
   • 5 replies
   • 1.3k views
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   • RyanJ
   • March 28, 2006

6. white dwarf star!

   By chitrangda, September 24, 2006
   • 1 reply
   • 1.3k views
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   • Martin
   • September 24, 2006

7. Question: Can the sun change it's polarity?

   By Johnny5, April 25, 2005
   • 8 replies
   • 1.3k views
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   • Johnny5
   • April 25, 2005

8. once in MANY lifetimes

   By YT2095, August 8, 2003
   • 1 reply
   • 1.3k views
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   • Loki
   • August 17, 2003

9. Hi... Look forward to talking with a lot of you

   By K-Kool, March 23, 2008
   • 6 replies
   • 1.3k views
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   • K-Kool
   • March 23, 2008

10. Astrophysicists unveil biggest-ever 3D map of Universe...

    By Orion1, July 20, 2020
    • 4 replies
    • 1.3k views
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    • MigL
    • July 23, 2020

11. Good maps of mars?

    By Aliasalpha, February 28, 2004
    • 1 reply
    • 1.3k views
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    • Duke
    • February 29, 2004

12. A time before time

    By Tetraspace, January 6, 2005
    • 4 replies
    • 1.3k views
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    • Tetraspace
    • January 7, 2005

13. An interesting new model for the evolution of earth moon system

    By madscience, November 11, 2007
    • 4 replies
    • 1.3k views
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    • madscience
    • November 11, 2007

14. Do we really need dark matter?

    By kenshin, December 6, 2005
    • 5 replies
    • 1.3k views
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    • kenshin
    • December 7, 2005

15. Science as Selling Populism

    By lfmorgan, May 27, 2008
    • 5 replies
    • 1.3k views
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    • Edtharan
    • May 28, 2008

16. Lateral motion

    By michel123456, November 20, 2012
    • 4 replies
    • 1.3k views
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    • michel123456
    • November 22, 2012

17. Electrodynamic Tethers as Generators

    By IResnick, April 6, 2015
    • 2 replies
    • 1.3k views
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    • Moonguy
    • April 10, 2015

18. Saturns Rings.....

    By us.2u, February 28, 2005
    • 3 replies
    • 1.3k views
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    • [Tycho?]
    • March 1, 2005

19. Sedna planet

    By copperstream, May 1, 2008
    • 3 replies
    • 1.3k views
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    • Klaynos
    • May 1, 2008

20. So were did we NOT find organic molecules?

    By Kedas, September 7, 2005
    • 6 replies
    • 1.3k views
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    • Kedas
    • September 18, 2005

21. Water on Exoplanets!!

    By Dr. Spitzer, July 30, 2007
    • 3 replies
    • 1.3k views
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    • h4tt3n
    • August 2, 2007

22. Gaia Parallax Measurement?

    By Dart15, October 3, 2014
    • 2 replies
    • 1.3k views
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    • mathematic
    • October 4, 2014

23. Amino acid precursor found 1/4 billion lightyears away

    By Martin, February 12, 2008
    • 2 replies
    • 1.3k views
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    • A Fool
    • February 14, 2008

24. the history of the solar system

    By milkyrain, November 20, 2007
    • 2 replies
    • 1.3k views
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    • Fred56
    • December 8, 2007

25. Zwicky galazxies and metallicity

    By entropydave, June 2, 2005
    • 5 replies
    • 1.3k views
    • 
    • entropydave
    • June 13, 2005