Physics, Space Science and Theories

1,706 topics in this forum

1. Light and dark matter

   By geordie85, February 11, 2019
   • 4 replies
   • 797 views
   • 
   • michael.h.f.wilkinson
   • February 12, 2019

2. Ultima Thule Surprise.

   By barkis, February 11, 2019
   • 5 replies
   • 442 views
   • 
   • Sunshine
   • February 11, 2019

3. Was "Oumuamua" An Alien Space Probe? 1 2 3 4

   By Klitwo, January 21, 2019
   • 85 replies
   • 4.6k views
   • 
   • Steve
   • February 10, 2019

4. Using machine learning to "enhance" the hemisphere of Pluto not yet mapped in high resolution (with your help!)

   By Sedna, January 30, 2019
   • 8 replies
   • 695 views
   • 
   • Sedna
   • February 1, 2019

5. How come that absolute 0 is at -273.15C?

   By vlaiv, January 20, 2019
   • 7 replies
   • 1.2k views
   • 
   • coatesg
   • January 24, 2019

6. Does The moon affect your weight??

   By Sunshine, January 18, 2019
   • 9 replies
   • 5.3k views
   • 
   • Carbon Brush
   • January 21, 2019

7. Black Holes Ultimate Guide

   By Sunshine, January 11, 2019
   • 4 replies
   • 734 views
   • 
   • Klitwo
   • January 19, 2019

8. Our Cosmic Soup

   By humblepigeon, December 11, 2018
   • 8 replies
   • 712 views
   • 
   • Alien 13
   • January 18, 2019

9. Einstein's Quantum Riddle

   By Sunshine, January 10, 2019
   • 5 replies
   • 1k views
   • 
   • Gasman
   • January 18, 2019

10. Science in Astronomy Now 1 2 3

    By andrew s, September 26, 2018
    • 52 replies
    • 2.7k views
    • 
    • Stub Mandrel
    • January 17, 2019

11. Will Hydrogen ultimately disappear

    By ngc6872, October 15, 2018
    • 14 replies
    • 1.1k views
    • 
    • Sunshine
    • January 12, 2019

12. FRB's From Where?

    By Sunshine, January 10, 2019
    • 4 replies
    • 617 views
    • 
    • robin_astro
    • January 10, 2019

13. Accoustic mirrors.

    By ollypenrice, January 8, 2019
    • 12 replies
    • 1.1k views
    • 
    • ollypenrice
    • January 10, 2019

14. Insight Places First Instrument

    By Sunshine, December 21, 2018
    • 3 replies
    • 531 views
    • 
    • cletrac1922
    • January 6, 2019

15. Ten big science stories of 2018

    By Stu, December 26, 2018
    • 3 replies
    • 546 views
    • 
    • Tiki
    • January 5, 2019

16. A question about magnets

    By JamesF, December 19, 2018
    • 6 replies
    • 614 views
    • 
    • JamesF
    • December 19, 2018

17. The reality of time, Lee Smolin lecture. 1 2 3 4 5

    By ollypenrice, November 26, 2018
    • 120 replies
    • 3.2k views
    • 
    • vlaiv
    • December 11, 2018

18. Exoplanet Detection with Consumer Equipment

    By BillP, October 6, 2018
    • 14 replies
    • 1.2k views
    • 
    • robin_astro
    • December 9, 2018

19. Earth is faster than the speed of light? 1 2 3

    By George Gearless, August 22, 2018   

    • bigbang
    • background radiation
    • 62 replies
    • 2.7k views
    • 
    • andrew s
    • December 9, 2018

20. Dark Fluid / Negative Mass? (Dark matter/energy)

    By Macavity, December 6, 2018
    • 4 replies
    • 590 views
    • 
    • Ags
    • December 6, 2018

21. Theory of Everything? 1 2

    By Paul M, November 22, 2018
    • 29 replies
    • 1.5k views
    • 
    • Paul M
    • December 4, 2018

22. Errata

    By andrew s, November 24, 2018
    • 0 replies
    • 454 views
    • 
    • andrew s
    • November 24, 2018

23. Why is spectral flux density calculated per unit wavelength?

    By billyharris72, November 15, 2018
    • 10 replies
    • 2.3k views
    • 
    • vlaiv
    • November 16, 2018

24. Herzsprung-Russell diagram

    By piff, November 13, 2018
    • 6 replies
    • 966 views
    • 
    • robin_astro
    • November 15, 2018

25. Weirdest Stars Known lecture

    By Sunshine, March 22, 2018   

    • stars
    • supernova
    • (and 3 more)

      Tagged with:

      • stars
      • supernova
      • red giant
      • bettelgeuse
      • neutron stars
    • 4 replies
    • 1.4k views
    • 
    • SIDO
    • November 2, 2018