Astronomy and Cosmology

3705 topics in this forum

1. Dark Energy

   By geordief, July 13, 2019
   • 1 reply
   • 738 views
   • 
   • Strange
   • July 13, 2019

2. Space Radiation: Astronauts: Cancer:

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

3. First real Black Hole image - 10 April 2019 1 2 3 4 5

   By Elendirs, April 8, 2019
   • 121 replies
   • 11.7k views
   • 
   • Strange
   • July 12, 2019

4. Viewing distant galaxies in unprecedented detail

   By beecee, July 10, 2019
   • 1 reply
   • 710 views
   • 
   • Mordred
   • July 11, 2019

5. The speed change of Oumuamua

   By peglerbc, December 29, 2018
   • 7 replies
   • 1.6k views
   • 
   • swansont
   • July 10, 2019

6. 3 facts maybe you don't know about antimatter

   By alfa015, April 14, 2019
   • 6 replies
   • 1.3k views
   • 
   • Mordred
   • July 10, 2019

7. What is the universe?

   By PrimalMinister, May 23, 2019
   • 22 replies
   • 1.6k views
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   • The Shadow
   • July 10, 2019

8. Cosmic Rays.

   By Bushranger, July 7, 2019
   • 14 replies
   • 1.4k views
   • 
   • Bushranger
   • July 8, 2019

9. Big Bang spin

   By loidokaar, July 7, 2019
   • 5 replies
   • 785 views
   • 
   • StringJunky
   • July 7, 2019

10. The best space simulator in history - Space Engine

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

11. Exoplanets (split from Science videos)

    By Airbrush, June 16, 2019
    • 18 replies
    • 1.9k views
    • 
    • swansont
    • July 1, 2019

12. Which theory is more preferred about universe expansion?

    By John Conner, June 27, 2019
    • 3 replies
    • 891 views
    • 
    • John Conner
    • June 28, 2019

13. Multiverse (split from Discussable Topics)

    By beecee, June 22, 2019
    • 2 replies
    • 722 views
    • 
    • beecee
    • June 22, 2019

14. Neil deGrasse Tyson says it’s ‘very likely’ the universe is a simulation 1 2

    By Polinski, June 21, 2019
    • 30 replies
    • 2.8k views
    • 
    • swansont
    • June 21, 2019

15. Jupiter Abyss: APOD:

    By beecee, June 16, 2019
    • 10 replies
    • 1.5k views
    • 
    • beecee
    • June 19, 2019

16. Do we need to go light speed

    By Curious layman, June 15, 2019
    • 4 replies
    • 993 views
    • 
    • Ghideon
    • June 15, 2019

17. A question about gravity

    By awaterpon, May 26, 2019
    • 1 reply
    • 930 views
    • 
    • swansont
    • May 26, 2019

18. Venus questions (split from Venus cooled off?)

    By Prometheus, May 23, 2019
    • 2 replies
    • 1.1k views
    • 
    • dimreepr
    • May 23, 2019

19. Could Parallel Universes Be Physically Real?

    By Strange, May 23, 2019
    • 3 replies
    • 887 views
    • 
    • dimreepr
    • May 23, 2019

20. Lunar Tunnels and Moon Colonies:

    By beecee, May 11, 2019
    • 19 replies
    • 1.7k views
    • 
    • Endy0816
    • May 21, 2019

21. Gravitational Interferometer and Kalman

    By Enthalpy, July 19, 2014
    • 10 replies
    • 1.8k views
    • 
    • Enthalpy
    • May 19, 2019

22. Jumbo Jet spaceships to the outer planets

    By Gian, May 17, 2019
    • 2 replies
    • 757 views
    • 
    • Gian
    • May 18, 2019

23. Is Earth's atmosphere transparent one way only?

    By Moreno, May 17, 2019
    • 7 replies
    • 1.1k views
    • 
    • pzkpfw
    • May 18, 2019

24. Planetary Migration:

    By beecee, May 10, 2019
    • 10 replies
    • 1.1k views
    • 
    • Moontanman
    • May 12, 2019

25. Infinite gravity 1 2

    By awaterpon, May 2, 2019
    • 34 replies
    • 3.3k views
    • 
    • Strange
    • May 9, 2019