Astronomy and Cosmology

3705 topics in this forum

1. What Imbues the Higgs Boson with its Mass?

   By G Anthony, December 23, 2011
   • 4 replies
   • 1.6k views
   • 
   • G Anthony
   • January 29, 2012

2. trying to understand Primordial Nucleosynthesis?

   By Widdekind, January 27, 2012
   • 2 replies
   • 2k views
   • 
   • G Anthony
   • January 29, 2012

3. Clearsky Reclamation Sciences Business Plan (yeah, right)

   By Realitycheck, January 27, 2012
   • 0 replies
   • 866 views
   • 
   • Realitycheck
   • January 27, 2012

4. can SMBH "squeeze stars" to explode ?

   By Widdekind, January 25, 2012
   • 0 replies
   • 911 views
   • 
   • Widdekind
   • January 25, 2012

5. Basic gravity questions

   By HeyNow, January 18, 2012
   • 5 replies
   • 4k views
   • 
   • Klaynos
   • January 25, 2012

6. Curvature caused by Photons too ? 1 2 3

   By Widdekind, January 3, 2011
   • 56 replies
   • 7.8k views
   • 
   • Widdekind
   • January 25, 2012

7. charge neutrality => matter / antimatter symmetry ?

   By Widdekind, January 22, 2012
   • 8 replies
   • 1.6k views
   • 
   • Airbrush
   • January 24, 2012

8. Rate and Location of Expansion 1 2 3 4

   By JustinW, January 2, 2012
   • 82 replies
   • 8.7k views
   • 
   • michel123456
   • January 21, 2012

9. Could black holes be quark stars?

   By 36grit, January 15, 2012
   • 5 replies
   • 2.1k views
   • 
   • questionposter
   • January 18, 2012

10. estimating galaxy ages from PNe ?

    By Widdekind, January 13, 2012
    • 1 reply
    • 1.1k views
    • 
    • pantheory
    • January 17, 2012

11. The drake equation. 1 2

    By dimreepr, January 12, 2012
    • 27 replies
    • 4.5k views
    • 
    • Airbrush
    • January 17, 2012

12. Norbert Weiner statement on infromation

    By universeandmatter, January 17, 2012
    • 0 replies
    • 688 views
    • 
    • universeandmatter
    • January 17, 2012

13. Expansion vs the speed of light.

    By Gozzer101, January 3, 2012
    • 3 replies
    • 1.2k views
    • 
    • Realitycheck
    • January 15, 2012

14. Which way is our galaxy moving and how fast?

    By Gozzer101, January 10, 2012
    • 14 replies
    • 2.7k views
    • 
    • DrRocket
    • January 15, 2012

15. Solar System formation

    By thomma, January 13, 2012
    • 1 reply
    • 764 views
    • 
    • Moontanman
    • January 13, 2012

16. wear and tear

    By Armor, January 12, 2012
    • 4 replies
    • 1.2k views
    • 
    • Armor
    • January 13, 2012

17. Practical Astronomy with your calculator

    By Ishtar, January 6, 2012
    • 1 reply
    • 981 views
    • 
    • Tres Juicy
    • January 12, 2012

18. Mercury perihelion precission

    By Obelix, January 6, 2012
    • 8 replies
    • 1.7k views
    • 
    • D H
    • January 9, 2012

19. Theory of the creation of everything

    By sciguy1, December 15, 2011
    • 22 replies
    • 3.5k views
    • 
    • swansont
    • January 9, 2012

20. building a neutrino detector ?

    By Widdekind, January 4, 2012
    • 11 replies
    • 2.1k views
    • 
    • swansont
    • January 8, 2012

21. Lunar "Month"

    By Drury, January 5, 2012
    • 3 replies
    • 1.1k views
    • 
    • Drury
    • January 6, 2012

22. "Star Destroyer" beams possible ?

    By Widdekind, January 3, 2012
    • 1 reply
    • 1.1k views
    • 
    • mathematic
    • January 4, 2012

23. a couple of questions about dark matter

    By 36grit, December 20, 2011
    • 7 replies
    • 1.9k views
    • 
    • swansont
    • December 30, 2011

24. year 2012 stops on this online converter.. WHY?

    By I think out of the box, December 28, 2011
    • 10 replies
    • 1.4k views
    • 
    • iNow
    • December 29, 2011

25. How long are strings?

    By Airbrush, December 29, 2011
    • 2 replies
    • 1.1k views
    • 
    • Airbrush
    • December 29, 2011