Astronomy and Cosmology

3686 topics in this forum

1. Dark Energy

   By surreptitious57, April 12, 2016
   • 1 reply
   • 910 views
   • 
   • Mordred
   • April 12, 2016

2. Matter/Energy and Space/Time

   By Airbrush, April 13, 2016
   • 1 reply
   • 935 views
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   • Strange
   • April 13, 2016

3. Event Horizon

   By Pugdaddy, April 26, 2016
   • 1 reply
   • 1.1k views
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   • elfmotat
   • April 26, 2016

4. Could asteroid 2016 HO3 be a Saturn V S-IVB third stage like J002E3?

   By LaurieAG, June 24, 2016
   • 1 reply
   • 1.1k views
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   • Raider5678
   • June 24, 2016

5. Conclusion....below topic

   By Ihcisphysicist, July 10, 2016
   • 1 reply
   • 953 views
   • 
   • Klaynos
   • July 10, 2016

6. The rotation curve problem

   By Muser, October 26, 2016
   • 1 reply
   • 1.1k views
   • 
   • swansont
   • October 26, 2016

7. Martian Aurora: to see or not to see?

   By GeeKay, November 16, 2016
   • 1 reply
   • 959 views
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   • Butch
   • November 17, 2016

8. A Unifying Theory

   By rstormview, December 6, 2016
   • 1 reply
   • 1k views
   • 
   • swansont
   • December 6, 2016

9. Expansion (split from quantification of space-time)

   By pittsburghjoe, December 25, 2016
   • 1 reply
   • 942 views
   • 
   • Strange
   • December 25, 2016

10. The Sun's Gravity Well

    By AceEducator, March 2, 2017
    • 1 reply
    • 1.2k views
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    • swansont
    • March 2, 2017

11. There can only be one, but I made 2 versions of my Theory of Everything.

    By Kevin William Belisle, March 8, 2017
    • 1 reply
    • 798 views
    • 
    • swansont
    • March 8, 2017

12. standard star formation model???

    By paragaster, March 13, 2017
    • 1 reply
    • 998 views
    • 
    • swansont
    • March 13, 2017

13. How to find exoplanets from home

    By alfa015, April 20, 2017
    • 1 reply
    • 918 views
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    • Phi for All
    • April 20, 2017

14. Magnetic field of neutron stars

    By King108, June 16, 2017
    • 1 reply
    • 937 views
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    • beecee
    • June 16, 2017

15. What do you think of this possible explanation of the red staining seen on Europa and a possible test for life on Europa?

    By gedsaz, September 12, 2017
    • 1 reply
    • 726 views
    • 
    • beecee
    • September 13, 2017

16. Star exploded, survived, and exploded again

    By beecee, November 9, 2017
    • 1 reply
    • 731 views
    • 
    • T. McGrath
    • November 10, 2017

17. The Nature of Time

    By Rumfrd, February 15, 2018
    • 1 reply
    • 720 views
    • 
    • hypervalent_iodine
    • February 15, 2018

18. Observation of the earliest stars

    By Strange, February 28, 2018
    • 1 reply
    • 711 views
    • 
    • beecee
    • February 28, 2018

19. Expansion - No Added Energy Required

    By Much Ado, June 27, 2018
    • 1 reply
    • 650 views
    • 
    • J.C.MacSwell
    • June 27, 2018

20. Space-time distortion and thoughts

    By Newcomer, July 14, 2018
    • 1 reply
    • 720 views
    • 
    • Warped
    • July 17, 2018

21. Reason for Establishing first Lunar Outpost:

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

22. On the Existence of Black Holes:

    By beecee, November 15, 2018
    • 1 reply
    • 664 views
    • 
    • beecee
    • November 16, 2018

23. Rocks falling into the sun

    By Edwina Lee, January 14, 2019
    • 1 reply
    • 704 views
    • 
    • mathematic
    • January 14, 2019

24. GAMMA RAY Burst and effect on Earth Life by Anmol Bihariya

    By Anmol Bihariya, March 4, 2019
    • 1 reply
    • 719 views
    • 
    • Vexen
    • March 4, 2019

25. Proving the wormhole

    By QuantumT, April 18, 2019
    • 1 reply
    • 532 views
    • 
    • beecee
    • April 19, 2019