Astronomy and Cosmology

3705 topics in this forum

1. Stop Worrying About the Future? Scientists Claims We Can See It

   By spacevudo, September 8, 2014
   • 6 replies
   • 1.6k views
   • 
   • Sensei
   • October 15, 2015

2. Why are people not so interested in Astronomy? 1 2

   By Cosmobrain, March 4, 2014
   • 43 replies
   • 5.5k views
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   • jeffellis
   • October 15, 2015

3. Planets that live forever

   By MirceaKitsune, May 12, 2014
   • 15 replies
   • 2.6k views
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   • Moontanman
   • October 15, 2015

4. Time travel Possable?

   By Malice13111, February 5, 2014
   • 5 replies
   • 1.7k views
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   • jeffellis
   • October 15, 2015

5. The Universe-How/Why????

   By Davwg297, September 5, 2014
   • 8 replies
   • 1.6k views
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   • jeffellis
   • October 14, 2015

6. Universes Not With Different Versions, But Locations

   By jhcrue, December 19, 2014
   • 6 replies
   • 1.4k views
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   • Phi for All
   • October 14, 2015

7. Can there be black holes in a universe of finite age? 1 2 3

   By Rolando, January 22, 2015
   • 74 replies
   • 6.8k views
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   • jeffellis
   • October 14, 2015

8. How did the rotation of galaxies?

   By Гера�им, January 15, 2015
   • 6 replies
   • 1.8k views
   • 
   • jeffellis
   • October 14, 2015

9. The science of Parallel universes

   By h_parikhh, April 29, 2015
   • 9 replies
   • 2.2k views
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   • jeffellis
   • October 14, 2015

10. Expanding Or Shrinking?

    By Jack Temmink, May 17, 2015
    • 10 replies
    • 1.8k views
    • 
    • Phi for All
    • October 14, 2015

11. Beginning of life

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

12. Is it misleading to say "IN the universe" 1 2

    By Sorcerer, August 5, 2015
    • 27 replies
    • 3.2k views
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    • jeffellis
    • October 14, 2015

13. Solar system to scale

    By michel123456, October 2, 2015
    • 1 reply
    • 888 views
    • 
    • michel123456
    • October 4, 2015

14. Solar system books

    By Chriss, October 3, 2015
    • 0 replies
    • 624 views
    • 
    • Chriss
    • October 3, 2015

15. Astronomy pictures

    By sunshaker, November 12, 2014
    • 11 replies
    • 2.4k views
    • 
    • Acme
    • October 3, 2015

16. Energy into matter

    By caledonia, October 1, 2015
    • 1 reply
    • 921 views
    • 
    • swansont
    • October 1, 2015

17. Density of Micrometeoroids in Space

    By GeeKay, October 1, 2015
    • 0 replies
    • 1.1k views
    • 
    • GeeKay
    • October 1, 2015

18. Hypervelocity stars, new mechanisms of creation

    By Sensei, August 20, 2015
    • 1 reply
    • 1.1k views
    • 
    • Enthalpy
    • September 29, 2015

19. 'Instability Strip' from fusion PP-to-CNO transition ?

    By Widdekind, August 6, 2011
    • 6 replies
    • 4k views
    • 
    • Enthalpy
    • September 29, 2015

20. 67P as an apple core

    By Enthalpy, February 17, 2015
    • 2 replies
    • 1.4k views
    • 
    • Enthalpy
    • September 29, 2015

21. Solar Neighborhood Enigma 1 2

    By David Levy, September 22, 2015
    • 37 replies
    • 3.2k views
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    • swansont
    • September 25, 2015

22. Aging of neutrinos

    By petrushka.googol, September 20, 2015
    • 8 replies
    • 1.6k views
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    • Mordred
    • September 24, 2015

23. Explanation of Dimentions

    By Rahman, September 21, 2015
    • 3 replies
    • 960 views
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    • Strange
    • September 23, 2015

24. Hawking search for ET? How successful do you think it will be? 1 2

    By Robittybob1, July 21, 2015
    • 38 replies
    • 3.6k views
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    • Moontanman
    • September 22, 2015

25. Isn't the 'something from nothing' notion wrong?

    By Herms, September 15, 2015
    • 6 replies
    • 2k views
    • 
    • puppypower
    • September 20, 2015