Physics, Space Science and Theories

1,717 topics in this forum

1. Our place in the Milky Way

   By Black Knight, June 4, 2013
   • 4 replies
   • 722 views
   • 
   • Black Knight
   • June 4, 2013

2. What happens when all the energy is used up?

   By spurius, May 23, 2013
   • 17 replies
   • 2.2k views
   • 
   • Northern Soul man
   • May 31, 2013

3. Spectroscopy

   By kirkster501, May 14, 2013
   • 5 replies
   • 1.2k views
   • 
   • AlexB67
   • May 24, 2013

4. Venus: What would happen?

   By Naemeth, May 23, 2013
   • 2 replies
   • 834 views
   • 
   • ronin
   • May 23, 2013

5. Plotting planets in 3D space?

   By Oz Ramos, May 8, 2013
   • 11 replies
   • 1.7k views
   • 
   • Daddystu
   • May 23, 2013

6. How are nebulae formed?

   By farunj, May 11, 2013
   • 12 replies
   • 1.1k views
   • 
   • Ags
   • May 20, 2013

7. Lightspeed & observing explosions & GRB's - missing something.....

   By Aenima, May 9, 2013
   • 19 replies
   • 1.1k views
   • 
   • Aenima
   • May 18, 2013

8. Question/Help: Identifying types of raw orbital and observation data

   By Krys, May 11, 2013
   • 0 replies
   • 423 views
   • 
   • Krys
   • May 11, 2013

9. Radioactivity....

   By mrjaffa, May 2, 2013
   • 9 replies
   • 824 views
   • 
   • mrjaffa
   • May 8, 2013

10. Chichester Meeting yesterday

    By nytecam, April 28, 2013
    • 0 replies
    • 437 views
    • 
    • nytecam
    • April 28, 2013

11. Galaxies visible only in infrared? 1 2

    By zed, April 11, 2013
    • 29 replies
    • 3.4k views
    • 
    • Tiki
    • April 26, 2013

12. stellar ignition

    By johnstone, April 23, 2013
    • 10 replies
    • 2.9k views
    • 
    • skybadger
    • April 25, 2013

13. Michelson-Morley experiment, speed of speed, c

    By Geryllax Vu, September 13, 2012
    • 23 replies
    • 2.7k views
    • 
    • Geryllax Vu
    • April 22, 2013

14. Interesting Article on newly discovered type of gamma-ray burt

    By bntwillis, April 17, 2013
    • 3 replies
    • 562 views
    • 
    • JulianO
    • April 19, 2013

15. Determining the energy output of a GRB

    By moogoomonkey, April 10, 2013
    • 3 replies
    • 667 views
    • 
    • JulianO
    • April 12, 2013

16. How many stars like our Sun in the Milky Way?

    By zed, April 11, 2013
    • 1 reply
    • 6k views
    • 
    • JulianO
    • April 12, 2013

17. LHC and string/brane size

    By jason.p, April 8, 2013
    • 2 replies
    • 553 views
    • 
    • M00NMonkey
    • April 11, 2013

18. Was our sun always part of Milky Way?

    By zed, April 6, 2013
    • 9 replies
    • 1.2k views
    • 
    • badgerchap
    • April 10, 2013

19. moon orbital period data

    By scoobystar, April 2, 2013
    • 2 replies
    • 609 views
    • 
    • scoobystar
    • April 9, 2013

20. Stars: The complete story

    By Ganymede12, April 8, 2013
    • 4 replies
    • 714 views
    • 
    • Ganymede12
    • April 8, 2013

21. Just a silly question

    By Ronnie67, February 19, 2013
    • 10 replies
    • 1.2k views
    • 
    • ollypenrice
    • April 3, 2013

22. Studying Astronomy in Grad School (Not a Homework Question)

    By Greathouse202, March 12, 2013
    • 9 replies
    • 847 views
    • 
    • mattft
    • April 1, 2013

23. Minimum distance between jupiter and saturn

    By spurius, March 31, 2013
    • 1 reply
    • 846 views
    • 
    • gkec
    • March 31, 2013

24. Uncertainty principle.

    By jason.p, March 23, 2013
    • 18 replies
    • 1.1k views
    • 
    • mytola
    • March 29, 2013

25. Can you find an error in the theory?

    By Fred Collins, March 12, 2013
    • 8 replies
    • 993 views
    • 
    • Fred Collins
    • March 28, 2013