Physics, Space Science and Theories

1,682 topics in this forum

1. Richard Feynman: A Comprehensive list of Books & Videos 1 2

   By Feynman, January 12, 2013
   • 32 replies
   • 18.5k views
   • 
   • mikemarotta
   • December 11, 2020

2. Maths conundrum.

   By ollypenrice, 8 hours ago
   • 4 replies
   • 101 views
   • 
   • saac
   • 1 hour ago

3. Extremely high energy particle

   By Captain Scarlet, November 24
   • 6 replies
   • 271 views
   • 
   • robin_astro
   • December 2

4. Potential to experimentally "verify" many worlds interpretation?

   By vlaiv, December 1
   • 0 replies
   • 75 views
   • 
   • vlaiv
   • December 1

5. Lucy sees double

   By Zermelo, November 3
   • 6 replies
   • 176 views
   • 
   • Zermelo
   • November 30

6. Is Jupiter a planet? 1 2 3

   By Ags, November 27
   • 53 replies
   • 666 views
   • 
   • Mandy D
   • November 28

7. is the waistline of the earth expanding?

   By Swoop1, November 3
   • 16 replies
   • 359 views
   • 
   • Gfamily
   • November 4

8. Below Chadrasekhar mass supernovae triggered by asteroid mass primordial dark matter black holes ?

   By robin_astro, October 26
   • 4 replies
   • 242 views
   • 
   • andrew s
   • October 26

9. NASA's real 'Hidden Figures' (Human Computers)

   By Macavity, October 24
   • 1 reply
   • 169 views
   • 
   • CCD-Freak
   • October 24

10. Ultradense asteroids hint at elements alien to us here on Earth!

    By Leo S, October 22
    • 5 replies
    • 235 views
    • 
    • Leo S
    • October 23

11. Photons and mass

    By Michael Kieth Adams, October 15
    • 19 replies
    • 358 views
    • 
    • Michael Kieth Adams
    • October 17

12. Batteries, continually improving, but keep going flat

    By Moonshed, October 6
    • 22 replies
    • 439 views
    • 
    • Carbon Brush
    • October 12

13. Observations lead to changing theory behind Planetary Nebulae

    By Gfamily, October 5
    • 6 replies
    • 216 views
    • 
    • Franklin
    • October 7

14. JWST Finds Interesting Planet Like Objects In Orion Nebula

    By saac, October 2
    • 2 replies
    • 239 views
    • 
    • Tomatobro
    • October 3

15. JWST detects CO2 on Europa

    By Zermelo, September 21
    • 2 replies
    • 340 views
    • 
    • Sunshine
    • September 30

16. Dark matter and gravitational lending

    By Michael Kieth Adams, September 8
    • 23 replies
    • 495 views
    • 
    • Michael Kieth Adams
    • September 21

17. "In Our Time" - Einstein - today

    By Zermelo, September 14
    • 5 replies
    • 324 views
    • 
    • andrew s
    • September 19

18. Negative Mass Matter 1 2

    By Ags, September 2
    • 25 replies
    • 664 views
    • 
    • saac
    • September 17

19. Venus

    By Michael Kieth Adams, September 13
    • 14 replies
    • 343 views
    • 
    • Michael Kieth Adams
    • September 14

20. Expanding confusion: Time integral of the reciprocal of the scaling factor from Hubble parameter equation 1 2 3 4

    By kurdewiusz, July 26   

    • expansion
    • redshift
    • (and 3 more)

      Tagged with:

      • expansion
      • redshift
      • scale
      • hubble
      • cosmology
    • 99 replies
    • 2.3k views
    • 
    • kurdewiusz
    • September 14

21. Landing on a Black Hole surface ?

    By billhinge, September 11
    • 0 replies
    • 290 views
    • 
    • billhinge
    • September 11

22. Big Bang theory just does not make sense 1 2 3 4 9

    By mnmcreator, August 22
    • 201 replies
    • 4.1k views
    • 
    • ollypenrice
    • September 5

23. Norton's Dome

    By Macavity, August 18
    • 6 replies
    • 381 views
    • 
    • saac
    • August 19

24. Is there any way you can tell if a star is either hydrogen shell burning or helium burning in its core (entered the horizontal branch or blue loop)

    By kingsbishop, August 13
    • 1 reply
    • 264 views
    • 
    • dan_adi
    • August 13

25. How to compute counts (photons/sec) for an H-Alpha emission diffuse object?

    By dan_adi, August 10
    • 1 reply
    • 288 views
    • 
    • dan_adi
    • August 13