Astronomy and Cosmology

3714 topics in this forum

1. Ashtekar and re-understanding the Bang

   By Martin, November 3, 2008
   • 1 reply
   • 991 views
   • 
   • npts2020
   • November 5, 2008

2. Outside the visible universe

   By Norman Albers, October 30, 2008
   • 8 replies
   • 1.7k views
   • 
   • Norman Albers
   • November 2, 2008

3. more detail for Arch

   By Martin, October 22, 2008
   • 4 replies
   • 1.1k views
   • 
   • Martin
   • November 2, 2008

4. The elliptical orbits of the planets

   By mooeypoo, October 30, 2008
   • 4 replies
   • 2k views
   • 
   • D H
   • November 1, 2008

5. I'm confused a bit

   By Faiien, November 1, 2008
   • 1 reply
   • 935 views
   • 
   • Martin
   • November 1, 2008

6. The universe can't expand beyond our reach

   By Baby Astronaut, October 28, 2008
   • 10 replies
   • 2.1k views
   • 
   • Martin
   • October 30, 2008

7. Flyby Anomaly

   By D H, October 30, 2008
   • 3 replies
   • 1.5k views
   • 
   • Sisyphus
   • October 30, 2008

8. How can we receive light from an object older than the universe

   By Alan McDougall, October 1, 2008
   • 12 replies
   • 2.2k views
   • 
   • Martin
   • October 29, 2008

9. Gas Giant Ignition

   By AtomSplitter, October 20, 2008
   • 24 replies
   • 3.9k views
   • 
   • Mr Skeptic
   • October 29, 2008

10. black-holes do not exist

    By north, October 29, 2008
    • 16 replies
    • 1.9k views
    • 
    • Mr Skeptic
    • October 29, 2008

11. Moving Earth - Experimental facts.

    By Obelix, October 28, 2008
    • 3 replies
    • 1.2k views
    • 
    • D H
    • October 28, 2008

12. Clarification of Arch's post

    By Arch2008, October 21, 2008
    • 12 replies
    • 1.7k views
    • 
    • npts2020
    • October 25, 2008

13. Space finite/space infinite/we don't know---which do you believe?

    By Martin, October 22, 2008
    • 14 replies
    • 2.1k views
    • 
    • dichotomy
    • October 24, 2008

14. How much of Einstein Online have you read?

    By Martin, October 23, 2008
    • 2 replies
    • 768 views
    • 
    • Martin
    • October 23, 2008

15. Shape of the universe

    By Cap'n Refsmmat, September 15, 2008
    • 19 replies
    • 3.4k views
    • 
    • Martin
    • October 21, 2008

16. Orbital energy

    By AtomSplitter, October 20, 2008
    • 15 replies
    • 2.9k views
    • 
    • Martin
    • October 21, 2008

17. Hello I am interstellaryeller

    By interstellar, October 21, 2008
    • 1 reply
    • 919 views
    • 
    • Phi for All
    • October 21, 2008

18. Aterna's question---the unexpected cosmic horizon 1 2

    By Martin, September 2, 2008
    • 27 replies
    • 3.8k views
    • 
    • Martin
    • October 19, 2008

19. NASA to Webcast IBEX Spacecraft Launch

    By Zeta Pegasi, October 19, 2008
    • 0 replies
    • 852 views
    • 
    • Zeta Pegasi
    • October 19, 2008

20. Do you have a new cosmology theory? 1 2

    By Martin, January 18, 2008
    • 36 replies
    • 6.7k views
    • 
    • Martin
    • October 19, 2008

21. WMAP5 data is out, check implications for cosmology

    By Martin, March 5, 2008
    • 10 replies
    • 2.4k views
    • 
    • Arch2008
    • October 16, 2008

22. thought on earth formation

    By dan1dad, September 28, 2008
    • 12 replies
    • 1.7k views
    • 
    • Moontanman
    • October 16, 2008

23. New images of Mercury

    By Realitycheck, October 7, 2008
    • 8 replies
    • 1.4k views
    • 
    • Arch2008
    • October 14, 2008

24. FYI The telescope

    By Arch2008, October 12, 2008
    • 0 replies
    • 765 views
    • 
    • Arch2008
    • October 12, 2008

25. sunspot's coolness

    By Pradeepkumar, October 10, 2008
    • 2 replies
    • 1.2k views
    • 
    • Pradeepkumar
    • October 11, 2008