Physics, Space Science and Theories

1,443 topics in this forum

1. A possible explanation for the 11-year Solar cycle

   By moonomaly, July 30, 2019
   • 4 replies
   • 324 views
   • 
   • Buzzard75
   • July 31, 2019

2. TOI-270 Planets found

   By jgs001, July 30, 2019
   • 0 replies
   • 209 views
   • 
   • jgs001
   • July 30, 2019

3. Which book should i get?

   By Kronos831, July 22, 2019   

   • physics
   • astrophysics
   • (and 3 more)

     Tagged with:

     • physics
     • astrophysics
     • math
     • book
     • help
   • 10 replies
   • 491 views
   • 
   • jetstream
   • July 25, 2019

4. Point of view 1 2

   By Michael Kieth Adams, July 19, 2019
   • 43 replies
   • 964 views
   • 
   • Michael Kieth Adams
   • July 22, 2019

5. Noticed while reading

   By Michael Kieth Adams, July 18, 2019
   • 8 replies
   • 303 views
   • 
   • Owmuchonomy
   • July 19, 2019

6. Breakthrough

   By theropod, July 14, 2019
   • 2 replies
   • 341 views
   • 
   • Alien 13
   • July 14, 2019

7. Fast radio bursts and amateur astro community

   By vlaiv, July 7, 2019
   • 8 replies
   • 405 views
   • 
   • SIDO
   • July 10, 2019

8. Cosmology - Timelapse of the Future

   By Ruud, June 29, 2019   

   • cosmology
   • end of time
   • (and 1 more)

     Tagged with:

     • cosmology
     • end of time
     • timelapse
   • 1 reply
   • 590 views
   • 
   • Mike_S
   • June 30, 2019

9. Could the solar system be an artifact? 1 2

   By Michael Kieth Adams, June 25, 2019
   • 46 replies
   • 1,151 views
   • 
   • Michael Kieth Adams
   • June 29, 2019

10. Earth's figure axis.

    By Ouroboros, June 24, 2019
    • 3 replies
    • 335 views
    • 
    • vlaiv
    • June 24, 2019

11. What is Gravity?!? The conceptual and short history on the problem of gravity: Part 1 - Newton

    By ThomasC, June 24, 2019
    • 0 replies
    • 250 views
    • 
    • ThomasC
    • June 24, 2019

12. Bootes Void

    By Yash4astronomy, June 20, 2019   

    • bootes void
    • astrophysics
    • (and 2 more)

      Tagged with:

      • bootes void
      • astrophysics
      • cosmology
      • expansion
    • 13 replies
    • 631 views
    • 
    • andrew s
    • June 20, 2019

13. Stellar Evolution MOOC

    By groberts, June 13, 2019
    • 0 replies
    • 277 views
    • 
    • groberts
    • June 13, 2019

14. Help please

    By Brodie3857, May 20, 2019
    • 9 replies
    • 638 views
    • 
    • vlaiv
    • June 12, 2019

15. RIP Murray Gell-Mann (of Quark fame!)

    By Macavity, May 29, 2019
    • 9 replies
    • 495 views
    • 
    • Macavity
    • June 3, 2019

16. A Flat problem

    By andrew s, May 29, 2019
    • 7 replies
    • 390 views
    • 
    • Tiki
    • May 30, 2019

17. Where does idea of infinite size of universe come from? 1 2 3 4

    By vlaiv, May 21, 2019
    • 80 replies
    • 1,553 views
    • 
    • andrew s
    • May 25, 2019

18. Need help with three questions

    By Ronnie67, September 3, 2015
    • 8 replies
    • 2,663 views
    • 
    • robin_astro
    • May 22, 2019

19. Speed of Light

    By Alien 13, May 20, 2019
    • 14 replies
    • 406 views
    • 
    • ollypenrice
    • May 21, 2019

20. The ultimate pendulum?

    By groberts, May 20, 2019
    • 1 reply
    • 273 views
    • 
    • vlaiv
    • May 20, 2019

21. Laws of gravitation

    By piff, January 26, 2019
    • 4 replies
    • 553 views
    • 
    • Damned2Hell
    • May 19, 2019

22. One for the (astro) physicists.

    By Guest, March 4, 2019
    • 9 replies
    • 528 views
    • 
    • Damned2Hell
    • May 19, 2019

23. solar experiment

    By greealilee, May 7, 2019
    • 5 replies
    • 427 views
    • 
    • Carbon Brush
    • May 15, 2019

24. Teleportation of humans - will it ever be possible? 1 2

    By kirkster501, May 8, 2019
    • 49 replies
    • 868 views
    • 
    • andrew s
    • May 10, 2019

25. Time Travel 1 2

    By Alien 13, April 30, 2019
    • 42 replies
    • 983 views
    • 
    • teoria_del_big_bang
    • May 8, 2019