Astronomy and Cosmology

3705 topics in this forum

1. Lunar Eclipse Question

   By mooeypoo, February 23, 2008
   • 8 replies
   • 1.9k views
   • 
   • iNow
   • February 29, 2008

2. GammarayBurst observatory nears launch

   By Martin, January 24, 2008
   • 1 reply
   • 1k views
   • 
   • Martin
   • February 28, 2008

3. If the universe is becoming larger, why would galaxies collide?

   By Realitycheck, January 19, 2008
   • 9 replies
   • 1.8k views
   • 
   • Klaynos
   • February 27, 2008

4. commercialization in space leads to scientific exploration?

   By foofighter, February 27, 2008
   • 1 reply
   • 856 views
   • 
   • D H
   • February 27, 2008

5. The Blue moon day

   By copperstream, February 14, 2008
   • 5 replies
   • 1.4k views
   • 
   • copperstream
   • February 25, 2008

6. Lunar eclipse 1 2

   By Jacques, February 20, 2008
   • 25 replies
   • 3.2k views
   • 
   • Norman Albers
   • February 24, 2008

7. Beyond universe

   By copperstream, February 21, 2008
   • 1 reply
   • 1.8k views
   • 
   • swansont
   • February 21, 2008

8. Amino acid precursor found 1/4 billion lightyears away

   By Martin, February 12, 2008
   • 2 replies
   • 1.3k views
   • 
   • A Fool
   • February 14, 2008

9. Singularity Question

   By dylan, February 12, 2008
   • 4 replies
   • 1.2k views
   • 
   • Martin
   • February 13, 2008

10. Chlorophyll found that will work with a redder star

    By Martin, February 12, 2008
    • 3 replies
    • 1.5k views
    • 
    • Edtharan
    • February 13, 2008

11. Galaxy collision software

    By entropydave, June 11, 2005
    • 2 replies
    • 2.7k views
    • 
    • andygardner
    • February 10, 2008

12. Center of the Universe? 1 2

    By Cmac22, January 23, 2008
    • 32 replies
    • 4.4k views
    • 
    • Observer
    • February 8, 2008

13. Gravity Waves and LIGO...

    By YT2095, January 30, 2008
    • 11 replies
    • 1.7k views
    • 
    • YT2095
    • January 31, 2008

14. What is the Big Bang? (a missing piece of the timeline, QC tries to reconstruct it)

    By Martin, January 26, 2008
    • 0 replies
    • 806 views
    • 
    • Martin
    • January 26, 2008

15. Black Holes Inside Stars or Planets?

    By scalbers, January 20, 2008
    • 1 reply
    • 947 views
    • 
    • Martin
    • January 20, 2008

16. Expansion question

    By Realitycheck, January 20, 2008
    • 8 replies
    • 1.1k views
    • 
    • Edtharan
    • January 20, 2008

17. Agent asks why age of universe is 13.7 billion years. Can anyone help?

    By Realitycheck, January 19, 2008
    • 9 replies
    • 1.4k views
    • 
    • Martin
    • January 20, 2008

18. Gamma rays can combine to form particles?

    By Realitycheck, January 16, 2008
    • 5 replies
    • 1k views
    • 
    • Severian
    • January 16, 2008

19. The concept of singularities

    By Realitycheck, January 12, 2008
    • 12 replies
    • 1.5k views
    • 
    • Norman Albers
    • January 14, 2008

20. Even Thin Galaxies Can Grow Fat Black Holes

    By Dr. Spitzer, January 13, 2008
    • 0 replies
    • 863 views
    • 
    • Dr. Spitzer
    • January 13, 2008

21. COSMA simulations of dark energy

    By Royston, January 11, 2008
    • 3 replies
    • 1.2k views
    • 
    • thedarkshade
    • January 11, 2008

22. Chance to see a major asteroid impact. On Mars.

    By insane_alien, December 21, 2007
    • 9 replies
    • 1.9k views
    • 
    • Kedas
    • January 10, 2008

23. solstice geometry

    By Norman Albers, January 3, 2008
    • 5 replies
    • 1.2k views
    • 
    • Norman Albers
    • January 8, 2008

24. Followup to Aigbusted's question

    By Martin, December 29, 2007
    • 19 replies
    • 1.8k views
    • 
    • iNow
    • December 31, 2007

25. Aigbusted's "habitable planet" question

    By Martin, December 28, 2007
    • 9 replies
    • 1.4k views
    • 
    • Martin
    • December 31, 2007