Astronomy and Cosmology

3709 topics in this forum

1. Science poetry

   By goingtothedo, June 28, 2007
   • 7 replies
   • 6.2k views
   • 
   • Martin
   • July 3, 2007

2. crossing the event horizon for a short distance?

   By Neil9327, July 2, 2007
   • 4 replies
   • 1.3k views
   • 
   • Spyman
   • July 2, 2007

3. Solar system future: John Baez timeline 1 2

   By Martin, May 28, 2007
   • 27 replies
   • 3.6k views
   • 
   • Spyman
   • July 2, 2007

4. Is Simple Life Common in Universe?

   By Luminal, July 1, 2007
   • 1 reply
   • 930 views
   • 
   • Sisyphus
   • July 1, 2007

5. Cosomological Constant 1 2

   By Amr Morsi, May 15, 2007
   • 26 replies
   • 3.4k views
   • 
   • lucaspa
   • June 18, 2007

6. Proper motion in the universe

   By losfomot, June 18, 2007
   • 2 replies
   • 1k views
   • 
   • Martin
   • June 18, 2007

7. place to waste time chating about stuff

   By kindadevil66, June 13, 2007
   • 3 replies
   • 1k views
   • 
   • astrocat
   • June 17, 2007

8. Coronal Storms

   By herme3, June 17, 2007
   • 0 replies
   • 936 views
   • 
   • herme3
   • June 17, 2007

9. Could this be possible?

   By r617flynn, June 5, 2007
   • 7 replies
   • 1.4k views
   • 
   • r617flynn
   • June 12, 2007

10. How far back in time could we possibly look?

    By Realitycheck, May 11, 2007
    • 9 replies
    • 2.1k views
    • 
    • astrocat
    • June 12, 2007

11. Gravitational Waves

    By Royston, June 7, 2007
    • 3 replies
    • 1.2k views
    • 
    • grifter
    • June 8, 2007

12. Universe Cycle

    By herme3, June 5, 2007
    • 6 replies
    • 3.4k views
    • 
    • Klaynos
    • June 6, 2007

13. black hole entropy

    By dstebbins, June 4, 2007
    • 2 replies
    • 886 views
    • 
    • dstebbins
    • June 5, 2007

14. Can a singularity be reached?

    By dstebbins, May 21, 2007
    • 12 replies
    • 1.7k views
    • 
    • Royston
    • May 31, 2007

15. Blue Moon on Thursday

    By YT2095, May 30, 2007
    • 15 replies
    • 1.4k views
    • 
    • Phi for All
    • May 31, 2007

16. the information paradox.

    By dstebbins, May 20, 2007
    • 23 replies
    • 2.6k views
    • 
    • lakmilis
    • May 31, 2007

17. Temperature of a neutron star

    By Jacques, April 23, 2007
    • 20 replies
    • 4.5k views
    • 
    • lakmilis
    • May 30, 2007

18. Alternative to dark matter (not MOND)

    By Jacques, May 24, 2007
    • 1 reply
    • 786 views
    • 
    • timo
    • May 25, 2007

19. The definition of Energy

    By Serling, May 20, 2007
    • 8 replies
    • 1.9k views
    • 
    • ajb
    • May 21, 2007

20. Strongest dark matter evidence so far

    By Martin, May 17, 2007
    • 8 replies
    • 1.5k views
    • 
    • grifter
    • May 21, 2007

21. How to differentiate Doppler and Cosmological redshift

    By Jacques, May 11, 2007
    • 7 replies
    • 2k views
    • 
    • Jacques
    • May 14, 2007

22. naive "guess" at star's temperature.

    By ajb, May 13, 2007
    • 6 replies
    • 1.3k views
    • 
    • John Cuthber
    • May 14, 2007

23. Comet assay

    By Ivaylo, May 12, 2007
    • 2 replies
    • 1.1k views
    • 
    • grifter
    • May 12, 2007

24. Static Electricity on the Moon

    By Everlasting, April 28, 2007
    • 7 replies
    • 2.3k views
    • 
    • mamakosj
    • May 12, 2007

25. Water Water Everywhere...

    By Klaynos, April 12, 2007
    • 10 replies
    • 1.9k views
    • 
    • mamakosj
    • May 12, 2007