Astronomy and Cosmology

3705 topics in this forum

1. universal homogenization

   By lemur, May 24, 2011
   • 4 replies
   • 1.8k views
   • 
   • Widdekind
   • May 26, 2011

2. Missing mass of the universe found with x-rays

   By Realitycheck, May 25, 2011
   • 4 replies
   • 1.9k views
   • 
   • Widdekind
   • May 25, 2011

3. Primordial Nucleosynthesis in Rad.Dom'd Era ?

   By Widdekind, May 22, 2011
   • 2 replies
   • 1.1k views
   • 
   • Widdekind
   • May 24, 2011

4. Alpha Magnetic Spectrometer

   By Airbrush, May 16, 2011
   • 3 replies
   • 1.3k views
   • 
   • BJC
   • May 21, 2011

5. denser early Cosmos had high index of refraction ?

   By Widdekind, May 18, 2011
   • 4 replies
   • 1.5k views
   • 
   • BJC
   • May 19, 2011

6. Motion in Outer Space

   By Luna, April 21, 2011
   • 11 replies
   • 3.9k views
   • 
   • Ophiolite
   • May 18, 2011

7. 'New Arm' of Milky Way links to Perseus arm ??

   By Widdekind, May 18, 2011
   • 0 replies
   • 1.1k views
   • 
   • Widdekind
   • May 18, 2011

8. Dark Matter (Anti-Matter) 1 2

   By RedShift1121, May 3, 2011
   • 27 replies
   • 5k views
   • 
   • Spyman
   • May 18, 2011

9. My ameteur article

   By RedmanBrendan, May 17, 2011
   • 1 reply
   • 1k views
   • 
   • Realitycheck
   • May 17, 2011

10. Interstellar Gas

    By Dekan, May 16, 2011
    • 4 replies
    • 1.3k views
    • 
    • Airbrush
    • May 16, 2011

11. Space is not infinite. 1 2 3

    By jamiestem, April 16, 2011
    • 66 replies
    • 13.2k views
    • 
    • Snuttifronk
    • May 16, 2011

12. Sling-shotting Energy

    By Oddt, May 9, 2011
    • 11 replies
    • 2.4k views
    • 
    • Spyman
    • May 14, 2011

13. Speaking of 2012.

    By Greatest I am, March 2, 2011
    • 9 replies
    • 2.3k views
    • 
    • MattyT
    • May 14, 2011

14. Rebang

    By 36grit, May 10, 2011
    • 6 replies
    • 1.4k views
    • 
    • 36grit
    • May 13, 2011

15. Are the iron remnants of supernovae mostly molecular in size or do we have substantial projectiles roaming around through space?

    By Realitycheck, April 3, 2011
    • 6 replies
    • 1.2k views
    • 
    • Realitycheck
    • May 13, 2011

16. What are the consequences of pole reversals on Earth?

    By Juryoku, May 11, 2011
    • 4 replies
    • 1.5k views
    • 
    • Airbrush
    • May 11, 2011

17. time and space

    By *puffy* japanisthebest, May 11, 2011
    • 1 reply
    • 1.5k views
    • 
    • Spyman
    • May 11, 2011

18. Electron origin

    By mathematic, May 4, 2011
    • 6 replies
    • 2.1k views
    • 
    • Spyman
    • May 11, 2011

19. solar and galactic planes question

    By padren, September 4, 2006
    • 4 replies
    • 1.4k views
    • 
    • Schrödinger's hat
    • May 9, 2011

20. light and gravity as distance grows

    By lemur, May 8, 2011
    • 8 replies
    • 1.7k views
    • 
    • BJC
    • May 8, 2011

21. moon Maria formed after tide-lock to earth ?

    By Widdekind, May 7, 2011
    • 0 replies
    • 1.5k views
    • 
    • Widdekind
    • May 7, 2011

22. Crater scaling-laws

    By Widdekind, May 5, 2011
    • 0 replies
    • 1.3k views
    • 
    • Widdekind
    • May 5, 2011

23. Universe from nothing.

    By praty, April 27, 2011
    • 12 replies
    • 2.8k views
    • 
    • rktpro
    • May 3, 2011

24. Cosmic Horizons

    By BJC, April 29, 2011
    • 4 replies
    • 1.6k views
    • 
    • BJC
    • May 1, 2011

25. Asteroid mining

    By lemur, April 27, 2011
    • 11 replies
    • 2.2k views
    • 
    • Moontanman
    • April 28, 2011