Astronomy and Cosmology

3685 topics in this forum

1. Inflation theory and finite universe

   By honzik, June 2, 2009
   • 12 replies
   • 1.8k views
   • 
   • Martin
   • June 7, 2009

2. Space Travel harder in M-Class starsystems

   By Widdekind, May 2, 2009
   • 14 replies
   • 1.8k views
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   • SH3RL0CK
   • June 7, 2009

3. Open Clusters age into "Moving Groups"

   By Widdekind, June 7, 2009
   • 0 replies
   • 716 views
   • 
   • Widdekind
   • June 7, 2009

4. Why is our universe assymmetrical

   By Alan McDougall, June 6, 2009
   • 6 replies
   • 1.2k views
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   • Daecon
   • June 6, 2009

5. Concept of time

   By purintjp, June 3, 2009
   • 6 replies
   • 1.3k views
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   • Martin
   • June 4, 2009

6. Expansion, collapse, or both.

   By Piltdown man, May 29, 2009
   • 23 replies
   • 2.6k views
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   • Martin
   • June 3, 2009

7. black holes

   By Avia, May 30, 2009
   • 8 replies
   • 1.3k views
   • 
   • Airbrush
   • June 3, 2009

8. The Unique Universe

   By Martin, June 2, 2009
   • 2 replies
   • 890 views
   • 
   • Martin
   • June 3, 2009

9. Predicting our Universe, past & present

   By Widdekind, June 3, 2009
   • 1 reply
   • 793 views
   • 
   • Martin
   • June 3, 2009

10. Is it possible space was not always expanding but is oscillating?

    By BigMoosie, April 2, 2009
    • 5 replies
    • 1.4k views
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    • Martin
    • May 30, 2009

11. Is it all true

    By jakelee27, May 27, 2009
    • 12 replies
    • 1.7k views
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    • Sisyphus
    • May 30, 2009

12. Spacecraft-Asteroid collision

    By ScienceFighter, May 30, 2009
    • 2 replies
    • 660 views
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    • Phi for All
    • May 30, 2009

13. a baby in space? 1 2

    By devrimci_kürt, March 29, 2009
    • 27 replies
    • 4k views
    • 
    • J.C.MacSwell
    • May 29, 2009

14. ETs Within 1,000 Light Years?

    By Airbrush, May 25, 2009
    • 20 replies
    • 2.8k views
    • 
    • Martin
    • May 29, 2009

15. Expansion of Space vs Movement in Space 1 2

    By NowThatWeKnow, May 10, 2009
    • 31 replies
    • 3.5k views
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    • Martin
    • May 26, 2009

16. seeing the big bang

    By jamey2k9, May 20, 2009
    • 12 replies
    • 1.8k views
    • 
    • CygnusX1
    • May 25, 2009

17. Size of universe

    By person, May 25, 2009
    • 1 reply
    • 913 views
    • 
    • Klaynos
    • May 25, 2009

18. Radio Pulsar / X-ray Binary Link

    By Widdekind, May 24, 2009
    • 1 reply
    • 650 views
    • 
    • Martin
    • May 24, 2009

19. Globular Clusters are swallowed Galaxies

    By Widdekind, May 11, 2009
    • 4 replies
    • 1k views
    • 
    • Widdekind
    • May 24, 2009

20. More accurate distance mez for cosmology (SciAm item)

    By Martin, May 23, 2009
    • 0 replies
    • 727 views
    • 
    • Martin
    • May 23, 2009

21. Looking at the moon with the Hubble telescope

    By Captain_Blythe, May 21, 2009
    • 4 replies
    • 1.5k views
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    • Janus
    • May 22, 2009

22. Age of the Universe question.

    By RaulDuke21, May 5, 2009
    • 22 replies
    • 2.7k views
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    • Gag Me
    • May 20, 2009

23. Change in some basic parameters may be under way

    By Martin, May 15, 2009
    • 2 replies
    • 990 views
    • 
    • Arch2008
    • May 19, 2009

24. Time Shift via Astronomic Alignment

    By SwampeastMike, May 13, 2009
    • 6 replies
    • 1.1k views
    • 
    • SwampeastMike
    • May 19, 2009

25. The hidden universe????

    By srimukh, May 16, 2009
    • 7 replies
    • 1.3k views
    • 
    • prodigenius
    • May 17, 2009