Astronomy and Cosmology

3686 topics in this forum

1. These are questions i NEED to know the answers to

   By sta895, July 9, 2021
   • 2 replies
   • 758 views
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   • beecee
   • July 9, 2021

2. extrasolar planet whose avg dist from its star is 0.72 have an orbital period of 0.61

   By vertigonight, March 19, 2005
   • 1 reply
   • 756 views
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   • Martin
   • March 19, 2005

3. Computer Controlled telescope?

   By subodh, June 19, 2006
   • 1 reply
   • 756 views
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   • Cap'n Refsmmat
   • June 19, 2006

4. Blue White shooting meteor over D.C.

   By bender0569, August 31, 2005
   • 2 replies
   • 753 views
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   • Thomas Kirby
   • September 1, 2005

5. The thermodynamic arrow of time applied to a universe which is accelerating in expansion.

   By Sorcerer, July 21, 2014
   • 1 reply
   • 753 views
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   • hypervalent_iodine
   • July 21, 2014

6. More Kepler Missions?

   By Airbrush, December 29, 2012
   • 0 replies
   • 751 views
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   • Airbrush
   • December 29, 2012

7. Astronaut Farmers?

   By Arch2008, August 13, 2008
   • 0 replies
   • 750 views
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   • Arch2008
   • August 13, 2008

8. Potential Dark Matter Thumbprint in Galactic Center Gamma

   By Schneibster, April 5, 2014
   • 0 replies
   • 750 views
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   • Schneibster
   • April 5, 2014

9. Are the stars of the constellation stationary?

   By lightforyoou, January 26, 2023
   • 11 replies
   • 748 views
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   • studiot
   • January 27, 2023

10. A question on the Big Bang

    By Darkchilde, March 16, 2010
    • 2 replies
    • 747 views
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    • Darkchilde
    • March 16, 2010

11. Is Dark Matter Real?

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

12. Does an event Horizon have the 2 meanings of horizon?

    By michel123456, April 17, 2019
    • 8 replies
    • 745 views
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    • Strange
    • April 19, 2019

13. Dark Matter mystery solved.

    By Cosmobrain, March 5, 2014
    • 1 reply
    • 744 views
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    • swansont
    • March 5, 2014

14. Start of time ?

    By Genady, January 4, 2022
    • 9 replies
    • 744 views
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    • Markus Hanke
    • January 6, 2022

15. Beyond Hubble

    By BlackHole, April 23, 2005
    • 0 replies
    • 743 views
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    • BlackHole
    • April 23, 2005

16. Get ready for KEPLER DAY it's almost here

    By Martin, March 2, 2006
    • 1 reply
    • 743 views
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    • bascule
    • March 2, 2006

17. anyone seen newerwritings on dark matter and gravity

    By mr d, July 12, 2006
    • 2 replies
    • 743 views
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    • KaiduOrkhon
    • July 17, 2006

18. The best space simulator in history - Space Engine

    By goldenfort, July 2, 2019
    • 2 replies
    • 743 views
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    • swansont
    • July 2, 2019

19. Stardust@home

    By Airmid, January 21, 2006
    • 0 replies
    • 742 views
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    • Airmid
    • January 21, 2006

20. new supernovae

    By harls, April 15, 2010
    • 1 reply
    • 740 views
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    • Arch2008
    • April 15, 2010

21. Are LIGO detectors the evolution of the Michelson Morley experiment?

    By shmengie, March 22, 2016
    • 1 reply
    • 740 views
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    • Strange
    • March 22, 2016

22. Space Radiation: Astronauts: Cancer:

    By beecee, July 11, 2019
    • 3 replies
    • 740 views
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    • Curious layman
    • July 12, 2019

23. Is the Big Bang theory a complete model of the universe?

    By caryunxwn, January 30, 2023
    • 5 replies
    • 740 views
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    • paulsutton
    • March 11, 2023

24. Observing from Mauna Kea

    By Robin Hood, April 3, 2010
    • 0 replies
    • 739 views
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    • Robin Hood
    • April 3, 2010

25. GR put to the test...

    By Royston, April 24, 2008
    • 0 replies
    • 738 views
    • 
    • Royston
    • April 24, 2008