Astronomy and Cosmology

3710 topics in this forum

1. Space and Planetary Probes and Telescopes:

   By beecee, October 13, 2018
   • 0 replies
   • 637 views
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   • beecee
   • October 13, 2018

2. Does accumulation of gravitational radiation increase quantity of meters in space?

   By DimaMazin, October 11, 2018
   • 10 replies
   • 1k views
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   • DimaMazin
   • October 13, 2018

3. Difference between gas composition of nebulae and gas planets like jupiter

   By Layers, October 6, 2018
   • 5 replies
   • 1.1k views
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   • beecee
   • October 7, 2018

4. stars observation

   By anti10188, October 6, 2018
   • 2 replies
   • 839 views
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   • anti10188
   • October 6, 2018

5. how could the big bang happen?

   By sci-man, August 31, 2018
   • 14 replies
   • 2.3k views
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   • Strange
   • October 6, 2018

6. Further Validity for the Big Bang?

   By beecee, October 5, 2018
   • 0 replies
   • 795 views
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   • beecee
   • October 5, 2018

7. Need help in putting words to formulas

   By anti10188, October 4, 2018
   • 8 replies
   • 1k views
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   • anti10188
   • October 4, 2018

8. Argument for discrete space

   By DannyTR, October 1, 2018
   • 8 replies
   • 1.4k views
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   • swansont
   • October 2, 2018

9. The Measure Problem 1 2 3 4 6

   By DannyTR, September 21, 2018
   • 130 replies
   • 11k views
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   • Phi for All
   • September 29, 2018

10. The Logic Of The Big Bang 1 2

    By PrimalMinister, September 24, 2018
    • 28 replies
    • 3k views
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    • Airbrush
    • September 27, 2018

11. Why doesn't the resonance of the entire universe experience damping?

    By John Harmonic, September 26, 2018
    • 5 replies
    • 720 views
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    • John Harmonic
    • September 26, 2018

12. Spacetime

    By PrimalMinister, September 24, 2018
    • 4 replies
    • 871 views
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    • swansont
    • September 24, 2018

13. Logic

    By PrimalMinister, September 23, 2018
    • 9 replies
    • 1.2k views
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    • studiot
    • September 23, 2018

14. Is this the final death knell for string theory and its derivatives?

    By beecee, September 14, 2018
    • 5 replies
    • 1.1k views
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    • J.C.MacSwell
    • September 18, 2018

15. What is the maximum mass of a black hole? Could it be the source of the big bang?

    By László Hajós, September 14, 2018
    • 2 replies
    • 717 views
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    • Strange
    • September 14, 2018

16. Is Dark Matter Real?

    By Itoero, August 22, 2018
    • 5 replies
    • 838 views
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    • Strange
    • September 13, 2018

17. Mission to the center of the Sun

    By franco malgarini, September 6, 2018
    • 6 replies
    • 1.1k views
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    • J.C.MacSwell
    • September 7, 2018

18. Pictures from solar eclips, showing bending of starlight?

    By Hello2, September 4, 2018
    • 3 replies
    • 863 views
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    • Strange
    • September 4, 2018

19. Tides

    By elemental scorpion, September 3, 2018
    • 2 replies
    • 694 views
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    • swansont
    • September 3, 2018

20. EM waves with astronomical wavelength

    By quiet, September 2, 2018
    • 12 replies
    • 1.3k views
    • 
    • John Cuthber
    • September 3, 2018

21. artificial gravity

    By Gian, August 29, 2018
    • 3 replies
    • 1k views
    • 
    • swansont
    • August 30, 2018

22. How important is Sun’s rotation on the orbits of the planets?

    By Hello2, August 24, 2018
    • 7 replies
    • 3k views
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    • J.C.MacSwell
    • August 28, 2018

23. Do black holes the size of a human hand or even smaller exist

    By Achilles, August 23, 2018
    • 3 replies
    • 708 views
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    • Strange
    • August 24, 2018

24. Reason for Establishing first Lunar Outpost:

    By beecee, August 21, 2018
    • 1 reply
    • 640 views
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    • Airbrush
    • August 22, 2018

25. How do we know that the universe is expanding when it could be simply stretching?

    By Achilles, August 16, 2018
    • 5 replies
    • 920 views
    • 
    • beecee
    • August 20, 2018