Astronomy and Cosmology

3705 topics in this forum

1. The XENON Dark Matter Project

   By dapifo, July 27, 2012
   • 9 replies
   • 1.9k views
   • 
   • Severian
   • July 30, 2012

2. Multiple universes

   By Onix, July 12, 2012
   • 24 replies
   • 3.5k views
   • 
   • dapifo
   • July 27, 2012

3. Expansion

   By umjd, July 26, 2012
   • 3 replies
   • 1.1k views
   • 
   • imatfaal
   • July 26, 2012

4. Existence of other galaxies?

   By umjd, July 25, 2012
   • 5 replies
   • 1.4k views
   • 
   • umjd
   • July 26, 2012

5. Distribution of Dark Matter

   By samsara15, July 24, 2012
   • 12 replies
   • 1.6k views
   • 
   • CaptainPanic
   • July 26, 2012

6. When was stabilized the amount of matter and energy in the universe?

   By dapifo, July 23, 2012
   • 3 replies
   • 966 views
   • 
   • dapifo
   • July 25, 2012

7. How do we know the distance from the supernova? 1 2

   By alpha2cen, June 15, 2012
   • 28 replies
   • 4.4k views
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   • alpha2cen
   • July 24, 2012

8. A place of existence 1 2

   By Nelson, July 21, 2012
   • 26 replies
   • 3.8k views
   • 
   • Airbrush
   • July 23, 2012

9. The Big Bang - theories

   By Mebzy, July 19, 2012
   • 16 replies
   • 2.3k views
   • 
   • Mebzy
   • July 21, 2012

10. How can we see light from the early primordial universe?

    By Alan McDougall, July 10, 2012
    • 20 replies
    • 3.1k views
    • 
    • alpha2cen
    • July 21, 2012

11. How would the universe be different if π = 3?

    By Alan McDougall, July 16, 2012
    • 18 replies
    • 1.9k views
    • 
    • D H
    • July 18, 2012

12. Dark matter & black holes

    By Pookadude, July 15, 2012
    • 11 replies
    • 1.5k views
    • 
    • Severian
    • July 17, 2012

13. Light, Observable Universe, Finite or infinite

    By Tom B, July 12, 2012
    • 2 replies
    • 1.2k views
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    • ACG52
    • July 15, 2012

14. Circumstellar Disk Disappears

    By Enthalpy, July 12, 2012
    • 3 replies
    • 1.1k views
    • 
    • Enthalpy
    • July 13, 2012

15. Big Bang 1 2 3

    By David Levy, June 24, 2012
    • 53 replies
    • 8.8k views
    • 
    • ACG52
    • July 13, 2012

16. Particle possible existing in parallel universes

    By Alan McDougall, July 12, 2012
    • 3 replies
    • 1.1k views
    • 
    • alpha2cen
    • July 12, 2012

17. information on what the following statement could mean?

    By space noob, July 8, 2012
    • 5 replies
    • 1.5k views
    • 
    • space noob
    • July 10, 2012

18. Can one poke a really stiff stick at greater than light speed?

    By Alan McDougall, July 9, 2012
    • 2 replies
    • 955 views
    • 
    • Cap'n Refsmmat
    • July 9, 2012

19. Why is the universe asymmetrical instead of symmetrical?

    By Alan McDougall, July 1, 2012
    • 5 replies
    • 1.7k views
    • 
    • CaptainPanic
    • July 9, 2012

20. Big Bang

    By David Levy, July 2, 2012
    • 7 replies
    • 2.4k views
    • 
    • Severian
    • July 9, 2012

21. Nothing or something? 1 2

    By mr.spaceman, July 1, 2012
    • 32 replies
    • 4.3k views
    • 
    • hypervalent_iodine
    • July 9, 2012

22. Higgs Boson Discovered

    By Airbrush, July 8, 2012
    • 1 reply
    • 1.2k views
    • 
    • space noob
    • July 8, 2012

23. In the absence of a heat source how long would it take for the earth to freeze solid? 1 2

    By Alan McDougall, July 1, 2012
    • 26 replies
    • 4.8k views
    • 
    • J.C.MacSwell
    • July 5, 2012

24. Range of the electromagnetic waves?

    By dapifo, June 28, 2012
    • 17 replies
    • 2.3k views
    • 
    • dapifo
    • July 5, 2012

25. Finite or infinite Universe 1 2

    By mr.spaceman, July 1, 2012
    • 25 replies
    • 3.7k views
    • 
    • mr.spaceman
    • July 4, 2012