Astronomy and Cosmology

3686 topics in this forum

1. A question about gravity

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

2. Viewing distant galaxies in unprecedented detail

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

3. Dark Energy

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

4. The Habitable Exoplanet Hunting Project

   By alfa015, July 13, 2019
   • 1 reply
   • 787 views
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   • alfa015
   • August 6, 2019

5. Is space infinite or finite?

   By Gater, September 10, 2019
   • 1 reply
   • 1k views
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   • Strange
   • September 10, 2019

6. Inside The 24/7 Search For Another Habitable Planet Within 100 Light Years Of Earth

   By alfa015, November 26, 2019
   • 1 reply
   • 764 views
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   • Airbrush
   • November 28, 2019

7. Rocket propulsion and economics (split from Solve the climate crisis: A thought experiment)

   By LaurieAG, January 24, 2020
   • 1 reply
   • 600 views
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   • LaurieAG
   • January 24, 2020

8. Big Bang and Dark Matter - doubts

   By ravell, January 27, 2020
   • 1 reply
   • 809 views
   • 
   • swansont
   • January 27, 2020

9. Apep

   By Bmpbmp1975, February 15, 2020
   • 1 reply
   • 730 views
   • 
   • swansont
   • February 15, 2020

10. Cosmology text book

    By Lizwi, February 24, 2020
    • 1 reply
    • 697 views
    • 
    • swansont
    • February 24, 2020

11. Bob Lazar, Area 51, & Flying Saucers

    By Airbrush, March 16, 2020
    • 1 reply
    • 968 views
    • 
    • Curious layman
    • March 17, 2020

12. Biggest Bang Since Big Bang

    By Airbrush, March 8, 2020
    • 1 reply
    • 927 views
    • 
    • Airbrush
    • March 26, 2020

13. help with gamma ray burst formula.

    By 𝐠𝛂𝕞𝕞𝛂 β𝐔𝙍𝐒𝐓, April 22, 2020
    • 1 reply
    • 910 views
    • 
    • Strange
    • April 22, 2020

14. New cosmocalculator

    By Mordred, July 11, 2020
    • 1 reply
    • 997 views
    • 
    • joigus
    • July 15, 2020

15. Evolution of moon

    By Sridharta, August 16, 2020
    • 1 reply
    • 725 views
    • 
    • Strange
    • August 16, 2020

16. I think I have understood what the cosmological constant problem corresponds to.

    By stephaneww, September 30, 2020
    • 1 reply
    • 637 views
    • 
    • swansont
    • September 30, 2020

17. Penrose's CCC

    By QuantumT, October 10, 2020
    • 1 reply
    • 854 views
    • 
    • Markus Hanke
    • October 11, 2020

18. Geologically Recorded Asteroid Impacts...

    By Orion1, December 5, 2020
    • 1 reply
    • 605 views
    • 
    • swansont
    • December 5, 2020

19. The Fermi Paradox:

    By beecee, January 24, 2021
    • 1 reply
    • 794 views
    • 
    • mathematic
    • January 24, 2021

20. First I heard of this! [Gotta have a giggle]

    By beecee, April 13, 2021
    • 1 reply
    • 651 views
    • 
    • beecee
    • April 13, 2021

21. Could you use Carbon Nanotube Yarn/Twistron Yarn and a black hole to theoretically create a Infinite Energy Source?

    By Liliander, April 27, 2021
    • 1 reply
    • 580 views
    • 
    • swansont
    • April 27, 2021

22. Dark Matter and Suspiciously Warm Planets:

    By beecee, May 4, 2021
    • 1 reply
    • 682 views
    • 
    • beecee
    • May 5, 2021

23. Moon Landing 360

    By Endy0816, August 5, 2021
    • 1 reply
    • 631 views
    • 
    • joigus
    • August 5, 2021

24. Redshifted Light

    By Muster Mark, August 31, 2021
    • 1 reply
    • 637 views
    • 
    • SergUpstart
    • August 31, 2021

25. Lorentz invariant gravity (split from Is Gravity a Force?)

    By SergUpstart, September 1, 2021
    • 1 reply
    • 553 views
    • 
    • swansont
    • September 1, 2021