Astronomy and Cosmology

3708 topics in this forum

1. Cosomological Constant 1 2

   By Amr Morsi, May 15, 2007
   • 26 replies
   • 3.4k views
   • 
   • lucaspa
   • June 18, 2007

2. Universe Cycle

   By herme3, June 5, 2007
   • 6 replies
   • 3.4k views
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   • Klaynos
   • June 6, 2007

3. Cosmological redshift 1 2

   By Itoero, October 25, 2018
   • 30 replies
   • 3.4k views
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   • Eise
   • December 7, 2018

4. Astronomy XXX

   By reerer, October 26, 2017
   • 22 replies
   • 3.4k views
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   • hypervalent_iodine
   • October 31, 2017

5. How many planets

   By jutntog1, May 13, 2005
   • 20 replies
   • 3.4k views
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   • Inferno
   • July 30, 2005

6. Hostile Humans 1 2

   By herme3, February 28, 2005
   • 25 replies
   • 3.4k views
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   • KholdStunner
   • March 5, 2005

7. Degrees of Arc

   By ads8525, March 13, 2008
   • 10 replies
   • 3.4k views
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   • swansont
   • March 14, 2008

8. What If Earth Had More Than One Moon

   By Fellow, January 9, 2004
   • 22 replies
   • 3.4k views
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   • Sayonara
   • February 24, 2004

9. A Steady State Universe

   By Carrock, October 24, 2014
   • 17 replies
   • 3.4k views
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   • Mordred
   • October 26, 2014

10. Rotating Space Stations

    By J'Dona, July 2, 2004
    • 6 replies
    • 3.4k views
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    • J'Dona
    • July 3, 2004

11. Infinite gravity 1 2

    By awaterpon, May 2, 2019
    • 34 replies
    • 3.4k views
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    • Strange
    • May 9, 2019

12. Space Fabric Causing Orbits

    By antimatter, March 20, 2008
    • 24 replies
    • 3.4k views
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    • abskebabs
    • March 23, 2008

13. Black Hole Energy Distribution 1 2

    By QuantumT, January 7, 2019
    • 37 replies
    • 3.4k views
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    • Strange
    • April 10, 2019

14. Astronomy puzzle (angular-size/redshift)

    By Martin, July 31, 2006
    • 19 replies
    • 3.4k views
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    • Sisyphus
    • September 26, 2006

15. Possibility of not having a singularity? 1 2

    By Sato, March 9, 2013
    • 25 replies
    • 3.4k views
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    • SplitInfinity
    • March 20, 2013

16. 3-dimensional space 1 2

    By bored_teen, June 12, 2008
    • 28 replies
    • 3.4k views
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    • Cap'n Refsmmat
    • June 13, 2008

17. Solar Neighborhood Enigma 1 2

    By David Levy, September 22, 2015
    • 37 replies
    • 3.4k views
    • 
    • swansont
    • September 25, 2015

18. Closed Universe?

    By Anjruu, April 3, 2006
    • 20 replies
    • 3.4k views
    • 
    • Norman Albers
    • April 19, 2006

19. Everything relative to the earth... 1 2

    By -Demosthenes-, January 24, 2005
    • 37 replies
    • 3.3k views
    • 
    • JaKiri
    • January 28, 2005

20. Mars Colonies- sooner than we may think? 1 2

    By Rasori, February 19, 2004
    • 25 replies
    • 3.3k views
    • 
    • Rasori
    • June 12, 2004

21. Terraforming Ganymede

    By Selena, September 12, 2005
    • 10 replies
    • 3.3k views
    • 
    • Selena
    • September 12, 2005

22. Where does gravity (most likely) come from?

    By dordle-loddle, July 30, 2017
    • 16 replies
    • 3.3k views
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    • Airbrush
    • February 13, 2018

23. expanding universe 1 2

    By johan01, December 8, 2008
    • 26 replies
    • 3.3k views
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    • north
    • December 24, 2008

24. Herschel Space telescope

    By Dishmaster, July 31, 2011
    • 23 replies
    • 3.3k views
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    • Dishmaster
    • August 19, 2011

25. 2012 DA14 Flyby path

    By LaurieAG, February 13, 2013
    • 13 replies
    • 3.3k views
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    • Ophiolite
    • February 18, 2013