Physics, Space Science and Theories

1,707 topics in this forum

1. Gravity

   By Guest, May 24, 2021
   • 8 replies
   • 1.1k views
   • 
   • Lariliss
   • August 28, 2021

2. Messy Eaters

   By Astro Noodles, August 5, 2021
   • 6 replies
   • 693 views
   • 
   • Lariliss
   • August 22, 2021

3. Venus exploration

   By Lariliss, August 20, 2021
   • 0 replies
   • 534 views
   • 
   • Lariliss
   • August 20, 2021

4. Gravitational Phenomenon

   By Todd G, August 3, 2021
   • 1 reply
   • 709 views
   • 
   • Barry Fitz-Gerald
   • August 3, 2021

5. Any book recommendations.....

   By Astro Waves, July 31, 2021
   • 3 replies
   • 475 views
   • 
   • Zermelo
   • July 31, 2021

6. Steven Weinberg has died.

   By George Jones, July 24, 2021
   • 2 replies
   • 938 views
   • 
   • Oldfort
   • July 25, 2021

7. I've been wondering about black holes

   By Astro Noodles, July 18, 2021
   • 7 replies
   • 829 views
   • 
   • Zermelo
   • July 19, 2021

8. A question about uniformity and the CMB

   By Astro Noodles, July 13, 2021
   • 8 replies
   • 774 views
   • 
   • ollypenrice
   • July 15, 2021

9. Lunar Enigma

   By Barry Fitz-Gerald, June 17, 2021
   • 4 replies
   • 839 views
   • 
   • Barry Fitz-Gerald
   • July 11, 2021

10. Energy of the tilted orbit

    By astrochumak, December 29, 2020
    • 15 replies
    • 1k views
    • 
    • basingset
    • July 5, 2021

11. Interesting new research into the length of solar cycles

    By Second Time Around, July 5, 2021
    • 0 replies
    • 377 views
    • 
    • Second Time Around
    • July 5, 2021

12. Stupid question about light years 1 2

    By Astro Noodles, June 25, 2021
    • 39 replies
    • 1.4k views
    • 
    • wimvb
    • June 28, 2021

13. Saturn V engine output colour

    By Swoop1, June 24, 2021
    • 4 replies
    • 517 views
    • 
    • Swoop1
    • June 25, 2021

14. Spectral Type - variable stars

    By Guest, June 20, 2021
    • 3 replies
    • 417 views
    • 
    • andrew s
    • June 20, 2021

15. Possible life on Venus finally announced 1 2

    By TerryMcK, September 14, 2020
    • 36 replies
    • 2.6k views
    • 
    • saac
    • June 19, 2021

16. Enjoy galaxy season while it lasts?

    By Paul M, May 4, 2021
    • 21 replies
    • 1.3k views
    • 
    • Gfamily
    • June 19, 2021

17. Ultimate multi coating for eyepieces

    By Ags, June 15, 2021
    • 0 replies
    • 466 views
    • 
    • Ags
    • June 15, 2021

18. Artificial satellite altitude stability

    By jambouk, June 15, 2021
    • 0 replies
    • 344 views
    • 
    • jambouk
    • June 15, 2021

19. I have completely new appreciation for Many Worlds

    By vlaiv, June 8, 2021
    • 9 replies
    • 828 views
    • 
    • vlaiv
    • June 14, 2021

20. New research suggests the Universe is learning its own physical laws

    By Waddensky, April 15, 2021
    • 3 replies
    • 629 views
    • 
    • EarthLife
    • June 7, 2021

21. edX Courses in Astrophysics

    By mikemarotta, December 11, 2020
    • 5 replies
    • 1k views
    • 
    • mikemarotta
    • May 19, 2021

22. Are we (inadvertently) populating Mars?

    By Macavity, April 18, 2021
    • 14 replies
    • 1.1k views
    • 
    • Ags
    • April 24, 2021

23. LHC - New Force... Z-prime... Leptoquarks?

    By Macavity, March 23, 2021
    • 22 replies
    • 1.1k views
    • 
    • billhinge
    • April 13, 2021

24. Entangled particles used for communication 1 2 3 4 5

    By Michael Kieth Adams, March 24, 2021
    • 108 replies
    • 3.7k views
    • 
    • reezeh
    • April 5, 2021

25. Dark matter

    By Michael Kieth Adams, March 19, 2021
    • 3 replies
    • 577 views
    • 
    • Michael Kieth Adams
    • March 24, 2021