Astronomy and Cosmology

3705 topics in this forum

1. Opening of "Phenomena of the natural parabola"

   By Valentin Dolzhenko, December 1, 2011
   • 1 reply
   • 2.7k views
   • 
   • Valentin Dolzhenko
   • September 14, 2012

2. What would happen to the atmosphere on Earth if it was adrift in space?

   By CCWilson, August 11, 2012
   • 13 replies
   • 2.7k views
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   • Moontanman
   • September 14, 2012

3. Death by entropy?

   By NikNak, July 20, 2012
   • 2 replies
   • 1.1k views
   • 
   • JohnStu
   • September 14, 2012

4. physics

   By kevin52, September 4, 2012
   • 2 replies
   • 1k views
   • 
   • JohnStu
   • September 14, 2012

5. I believe the universe is electric

   By EMField, August 19, 2012
   • 11 replies
   • 1.7k views
   • 
   • JohnStu
   • September 14, 2012

6. Supernova and spacetime stretching

   By Jacques, September 7, 2012
   • 2 replies
   • 1k views
   • 
   • JohnStu
   • September 14, 2012

7. Could Planet X be made of dark matter?

   By Sullinger, September 9, 2012
   • 3 replies
   • 1.3k views
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   • JohnStu
   • September 14, 2012

8. High Energy Cosmic Rays and the Origin of Life

   By deepnessdawn, September 12, 2012
   • 1 reply
   • 1.7k views
   • 
   • JohnStu
   • September 14, 2012

9. Question about Compression/Decompression

   By Richard Perkins, September 8, 2012
   • 1 reply
   • 828 views
   • 
   • JohnStu
   • September 14, 2012

10. The Origin of the Universe

    By deepnessdawn, September 12, 2012
    • 0 replies
    • 746 views
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    • deepnessdawn
    • September 12, 2012

11. Dark Matter and Dark Energy 1 2

    By StringJunky, June 23, 2012
    • 45 replies
    • 7.1k views
    • 
    • pantheory
    • September 6, 2012

12. Planetary Habitability

    By KTevolved, September 6, 2012
    • 1 reply
    • 946 views
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    • Moontanman
    • September 6, 2012

13. Dark Matter and Compton wavelengths

    By LaurieAG, August 28, 2012
    • 5 replies
    • 2.4k views
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    • LaurieAG
    • September 5, 2012

14. Dark Energy

    By jatmacha, August 24, 2012
    • 11 replies
    • 2.1k views
    • 
    • alpha2cen
    • August 25, 2012

15. how many dead stars

    By jatmacha, August 24, 2012
    • 0 replies
    • 720 views
    • 
    • jatmacha
    • August 24, 2012

16. Dark Matter Filament Found

    By StringJunky, July 27, 2012
    • 15 replies
    • 2.9k views
    • 
    • EMField
    • August 16, 2012

17. Observable Universe and Cosmological Principle

    By the asinine cretin, May 31, 2012
    • 10 replies
    • 1.4k views
    • 
    • Alan McDougall
    • August 16, 2012

18. Just a few questions on space and gravity.

    By too-open-minded, August 11, 2012
    • 10 replies
    • 1.8k views
    • 
    • abvegto
    • August 14, 2012

19. Terraforming Mars

    By Cerius, August 9, 2012
    • 5 replies
    • 1.9k views
    • 
    • mr.spaceman
    • August 12, 2012

20. Jupiter's bands

    By Gareth56, August 12, 2012
    • 1 reply
    • 1.1k views
    • 
    • Greg H.
    • August 12, 2012

21. What can Curiosity do?

    By Airbrush, August 10, 2012
    • 1 reply
    • 834 views
    • 
    • Fuzzwood
    • August 10, 2012

22. Why is the universe expanding?

    By HerbertSu, July 29, 2012
    • 10 replies
    • 2.2k views
    • 
    • alpha2cen
    • August 7, 2012

23. Black Holes, Light and the LHC

    By Banjax, July 21, 2012
    • 11 replies
    • 1.9k views
    • 
    • EMField
    • August 6, 2012

24. Are cosmic particles directional

    By vich, August 6, 2012
    • 1 reply
    • 978 views
    • 
    • mathematic
    • August 6, 2012

25. Sessile drop surface tension

    By hhadisi, August 6, 2012
    • 0 replies
    • 998 views
    • 
    • hhadisi
    • August 6, 2012