Astronomy and Cosmology

3705 topics in this forum

1. Fast Rotating Asteroids

   By GeeKay, January 15, 2018
   • 3 replies
   • 1.4k views
   • 
   • mistermack
   • January 16, 2018

2. Exoplanet discoveries 1 2

   By Strange, December 27, 2017
   • 44 replies
   • 4.5k views
   • 
   • Raider5678
   • January 12, 2018

3. Why is the observable universe flat? 1 2

   By Raider5678, January 2, 2018
   • 26 replies
   • 3.6k views
   • 
   • Roamer
   • January 4, 2018

4. Mars Clock Delay

   By Raider5678, January 4, 2018
   • 4 replies
   • 868 views
   • 
   • Janus
   • January 4, 2018

5. Some questions about the moon, please give directions

   By zands, January 2, 2018
   • 5 replies
   • 943 views
   • 
   • interested
   • January 4, 2018

6. Expansion and Inflation

   By geordief, December 31, 2017
   • 19 replies
   • 1.6k views
   • 
   • Mordred
   • January 2, 2018

7. Why is the sky in the night Black???...

   By Koni, December 30, 2017
   • 7 replies
   • 1.2k views
   • 
   • Koni
   • December 31, 2017

8. Space a constant, singularities all over the universe

   By TTski, December 31, 2017
   • 2 replies
   • 995 views
   • 
   • studiot
   • December 31, 2017

9. White Hole Decay becoming the higg’s field scalar 0?

   By Bigg’s Boson, December 28, 2017
   • 3 replies
   • 2.6k views
   • 
   • Mordred
   • December 28, 2017

10. Magnetic Reconnection & Atmospheric Currents

    By Unified Field, December 17, 2017
    • 15 replies
    • 2k views
    • 
    • Unified Field
    • December 24, 2017

11. Variation on Solar System Formation:

    By beecee, December 23, 2017
    • 0 replies
    • 649 views
    • 
    • beecee
    • December 23, 2017

12. Dark Matter or Dark Force 1 2 3

    By TakenItSeriously, December 1, 2017
    • 73 replies
    • 6.2k views
    • 
    • LaurieAG
    • December 19, 2017

13. What is the methodology for concluding accelerated expansion?

    By Cosmo_Ken, December 12, 2017
    • 6 replies
    • 1.7k views
    • 
    • T. McGrath
    • December 14, 2017

14. What color is the sky on Mars?

    By Cosmo_Ken, December 2, 2017
    • 9 replies
    • 2.2k views
    • 
    • Cosmo_Ken
    • December 12, 2017

15. Action Dynamics of the Local Supercluster

    By T. McGrath, December 9, 2017
    • 0 replies
    • 645 views
    • 
    • T. McGrath
    • December 9, 2017

16. E=mc2

    By Tub, December 6, 2017
    • 2 replies
    • 956 views
    • 
    • Tub
    • December 6, 2017

17. Which galaxies will become gravitationally bound to us after our collision with Andromeda? 1 2

    By MarkE, November 11, 2017
    • 34 replies
    • 3k views
    • 
    • Mordred
    • November 25, 2017

18. Conservation of energy/mass

    By MarkE, November 22, 2017
    • 3 replies
    • 983 views
    • 
    • MarkE
    • November 24, 2017

19. Sixth Gravitational Wave Discovery:

    By beecee, November 16, 2017
    • 22 replies
    • 1.7k views
    • 
    • Outrider
    • November 21, 2017

20. Oldest spiral galaxy challenge to established age of universe? 1 2

    By aramis720, November 5, 2017
    • 28 replies
    • 2.9k views
    • 
    • Outrider
    • November 19, 2017

21. Peer Review requested.

    By beecee, November 11, 2017
    • 3 replies
    • 1.3k views
    • 
    • beecee
    • November 14, 2017

22. Age and shape of the Universe

    By Stclaim, November 10, 2017
    • 6 replies
    • 1k views
    • 
    • Strange
    • November 12, 2017

23. Star exploded, survived, and exploded again

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

24. Galaxy strings and redshifts

    By aramis720, November 7, 2017
    • 7 replies
    • 1.2k views
    • 
    • aramis720
    • November 9, 2017

25. Why do we think there is dark matter and dark energy?

    By Anthony Morris, October 12, 2017
    • 24 replies
    • 3k views
    • 
    • Strange
    • November 2, 2017