Astronomy and Cosmology

3708 topics in this forum

1. Earth from Mars

   By BPHgravity, May 28, 2003
   • 3 replies
   • 1.5k views
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   • BPHgravity
   • June 23, 2003

2. is Dark Energy effect on the curvature of space time

   By devrimci_kürt, February 28, 2009
   • 5 replies
   • 1.5k views
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   • Martin
   • February 28, 2009

3. Is our Solar system weird?

   By KrupS, June 25, 2011
   • 2 replies
   • 1.5k views
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   • baric
   • June 25, 2011

4. Universe E, m and D.

   By Dov, October 14, 2004
   • 4 replies
   • 1.5k views
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   • Dov
   • November 12, 2004

5. information on what the following statement could mean?

   By space noob, July 8, 2012
   • 5 replies
   • 1.5k views
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   • space noob
   • July 10, 2012

6. red giants

   By thedarkshade, April 17, 2009
   • 5 replies
   • 1.5k views
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   • thedarkshade
   • April 20, 2009

7. A Milky Quasar?

   By GeeKay, January 6, 2015
   • 7 replies
   • 1.5k views
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   • Airbrush
   • January 10, 2015

8. Regarding Black Holes

   By Comatose, February 14, 2008
   • 8 replies
   • 1.5k views
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   • insane_alien
   • March 1, 2008

9. Toy model space that is not expanding into

   By Martin, January 25, 2009
   • 7 replies
   • 1.5k views
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   • NowThatWeKnow
   • January 27, 2009

10. graviton and the higgs field

    By hewj11, October 1, 2012
    • 4 replies
    • 1.5k views
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    • Ronald Hyde
    • October 1, 2012

11. Jupiter...another star?

    By C3H5(NO3)3, May 23, 2005
    • 5 replies
    • 1.5k views
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    • Spyman
    • May 24, 2005

12. Different size stars

    By Dan, December 17, 2006
    • 6 replies
    • 1.5k views
    • 
    • weknowthewor
    • December 20, 2006

13. Is it possible space was not always expanding but is oscillating?

    By BigMoosie, April 2, 2009
    • 5 replies
    • 1.5k views
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    • Martin
    • May 30, 2009

14. Antimatter/Matter

    By nchen24, September 9, 2009
    • 8 replies
    • 1.5k views
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    • Airbrush
    • September 11, 2009

15. thought on earth formation

    By dan1dad, September 28, 2008
    • 12 replies
    • 1.5k views
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    • Moontanman
    • October 16, 2008

16. denser early Cosmos had high index of refraction ?

    By Widdekind, May 18, 2011
    • 4 replies
    • 1.5k views
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    • BJC
    • May 19, 2011

17. Liquid water found on mars...???

    By Guest breezeman609, May 21, 2005
    • 7 replies
    • 1.5k views
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    • drizzt
    • May 23, 2005

18. Dark Energy and a Flat Universe

    By Star-struck, July 21, 2003
    • 3 replies
    • 1.5k views
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    • JaKiri
    • July 21, 2003

19. Whirlpool Space-Time Distortion

    By Guest sar, April 11, 2005
    • 3 replies
    • 1.5k views
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    • Spyman
    • April 13, 2005

20. Black Holes, "Torsion Free" spacetime, and Angular Momentum?

    By Freeman, February 11, 2006
    • 4 replies
    • 1.5k views
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    • pcs
    • February 11, 2006

21. Space Shuttle Atlantis Storm

    By Harry Deano, August 7, 2007
    • 16 replies
    • 1.5k views
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    • insane_alien
    • August 11, 2007

22. Please Explain Why:

    By Quartile, May 20, 2008
    • 12 replies
    • 1.5k views
    • 
    • Pangloss
    • May 21, 2008

23. Future of the universe?

    By R A J A, April 8, 2012
    • 5 replies
    • 1.5k views
    • 
    • JohnStu
    • April 9, 2012

24. The Final Frontier: Achievable in high school?

    By tibieuh, March 6, 2013
    • 8 replies
    • 1.5k views
    • 
    • BearOfNH
    • March 11, 2013

25. What gives the 4D universe its persistence?

    By Genecks, July 26, 2014
    • 10 replies
    • 1.5k views
    • 
    • hoola
    • July 27, 2014