Astronomy and Cosmology

3708 topics in this forum

1. Black holes = white holes?

   By Moontanman, August 18, 2011
   • 1 reply
   • 1.7k views
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   • Spyman
   • August 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. Universal Fractal Approach

   By Dov, October 16, 2004
   • 7 replies
   • 1.6k views
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   • aguy2
   • November 15, 2004

4. A sea on Mars?

   By Blackfin, February 23, 2005
   • 10 replies
   • 1.6k views
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   • Ophiolite
   • February 25, 2005

5. Universe Might be Bigger and Older than Expected

   By darkangel199, August 7, 2006
   • 7 replies
   • 1.6k views
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   • Martin
   • August 11, 2006

6. Solar system motion relative to the Galaxy

   By earthist, August 6, 2009
   • 7 replies
   • 1.6k views
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   • Tolmosoff
   • August 6, 2009

7. Trouble with Physics runaway bestseller after Smolin's Unique Universe appears

   By Martin, July 3, 2009
   • 3 replies
   • 1.6k views
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   • hewj11
   • August 28, 2009

8. Dark Matter explanation?

   By Billymcintosh, March 18, 2015
   • 4 replies
   • 1.6k views
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   • Strange
   • March 19, 2015

9. Photons

   By DarthDooku, October 26, 2004
   • 8 replies
   • 1.6k views
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   • CPL.Luke
   • October 31, 2004

10. I am looking for a mentor to help with a project.

    By Guest Bones2k, December 9, 2002
    • 4 replies
    • 1.6k views
    • 
    • Guest
    • December 11, 2002

11. Horava Gravity

    By Bill S, January 14, 2017
    • 8 replies
    • 1.6k views
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    • Bill S
    • January 26, 2017

12. Telescope Mirror- thickness

    By Wil242424, February 10, 2017
    • 5 replies
    • 1.6k views
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    • Bender
    • February 14, 2017

13. patch of surface ice in Mars crater photographed (OK not a first, but..)

    By Martin, July 30, 2005
    • 6 replies
    • 1.6k views
    • 
    • Thomas Kirby
    • August 26, 2005

14. infinite density in black holes?

    By foofighter, July 8, 2007
    • 9 replies
    • 1.6k views
    • 
    • foofighter
    • July 10, 2007

15. How can the rings of Saturn exist?

    By CaptainPanic, February 28, 2008
    • 9 replies
    • 1.6k views
    • 
    • antimatter
    • March 12, 2008

16. Is this one way to make a planet?

    By alpha2cen, December 7, 2012
    • 10 replies
    • 1.6k views
    • 
    • ACG52
    • December 8, 2012

17. Riddle me this...

    By Butch, November 17, 2016
    • 10 replies
    • 1.6k views
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    • imatfaal
    • November 20, 2016

18. Reuter(Loops 07) no inflaton needed, no horizon problem

    By Martin, July 28, 2007
    • 9 replies
    • 1.6k views
    • 
    • bascule
    • August 1, 2007

19. how to calculate the temperature of cmb over time ?

    By stephaneww, December 10, 2015
    • 2 replies
    • 1.6k views
    • 
    • stephaneww
    • December 10, 2015

20. Neil DeGrasse Tyson's Different Perspective of Cosmos

    By ankitmn7, June 16, 2014
    • 5 replies
    • 1.6k views
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    • `hýsøŕ
    • July 4, 2014

21. Europa May Have Plate Tectonics

    By tentacle, September 9, 2014
    • 8 replies
    • 1.6k views
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    • Ophiolite
    • September 12, 2014

22. Beginning of life

    By JackG, July 26, 2015
    • 9 replies
    • 1.6k views
    • 
    • Phi for All
    • October 14, 2015

23. Conceptualizing the shape of Space Time

    By jeshaw2, April 20, 2006
    • 7 replies
    • 1.6k views
    • 
    • jeshaw2
    • April 20, 2006

24. Gravity and gases

    By mab, October 7, 2004
    • 3 replies
    • 1.6k views
    • 
    • swansont
    • October 10, 2004

25. Speed of Light - Time it take to...

    By Jimmy Ray, April 14, 2006
    • 9 replies
    • 1.6k views
    • 
    • The Peon
    • April 20, 2006