Astronomy and Space

1,484 topics in this forum

1. Death of universe

   By jagadish, January 21, 2009
   • 8 replies
   • 1.7k views
   • 
   • CraigD
   • February 27, 2009

2. Currently looking into purchasing binoculars

   By brad, February 24, 2009
   • 0 replies
   • 1k views
   • 
   • brad
   • February 24, 2009

3. Kepler Mission

   By Jim Colyer, February 24, 2009
   • 0 replies
   • 1.1k views
   • 
   • Jim Colyer
   • February 24, 2009

4. Big bang vs Einstiens theory of reletivity?

   By Moadib, February 8, 2009
   • 4 replies
   • 2.5k views
   • 
   • xersan
   • February 22, 2009

5. Twin Earth

   By TheBigDog, April 30, 2006
   • 13 replies
   • 2.9k views
   • 
   • freeztar
   • February 21, 2009

6. Is the Kessler syndrome imminent?

   By CraigD, February 13, 2009
   • 1 reply
   • 2.9k views
   • 
   • freeztar
   • February 13, 2009

7. More than one Big Bang? 1 2 3 4

   By chamilton333, April 18, 2006
   • 51 replies
   • 10.8k views
   • 
   • Moadib
   • February 10, 2009

8. Can Neutron Star Become Black Hole 1 2

   By litespeed, January 29, 2009
   • 29 replies
   • 9.9k views
   • 
   • CraigD
   • February 8, 2009

9. Cosmic Radio Background

   By Buffy, February 5, 2009
   • 1 reply
   • 1.6k views
   • 
   • CraigD
   • February 5, 2009

10. Lightspeed 1 2 3

    By goku, August 9, 2008
    • 49 replies
    • 6.9k views
    • 
    • CraigD
    • January 31, 2009

11. Inflation or more generally negative pressure

    By sanctus, January 31, 2009
    • 0 replies
    • 1.3k views
    • 
    • sanctus
    • January 31, 2009

12. How Long For a Star to Lite Up?

    By litespeed, January 15, 2009
    • 8 replies
    • 1.4k views
    • 
    • litespeed
    • January 29, 2009

13. Gravity and a giant gas cloud 1 2

    By HydrogenBond, December 30, 2008
    • 20 replies
    • 3.5k views
    • 
    • belovelife
    • January 17, 2009

14. Orientation of Solar System 1 2

    By Essay, December 24, 2008
    • 26 replies
    • 14.2k views
    • 
    • modest
    • January 15, 2009

15. Laser light detection of aliens

    By Moontanman, January 1, 2009
    • 2 replies
    • 1.9k views
    • 
    • Moontanman
    • January 14, 2009

16. Magnetic Elevator 1 2

    By JoeRoccoCassara, December 20, 2008
    • 18 replies
    • 6.7k views
    • 
    • belovelife
    • January 11, 2009

17. Infinite Universe Or Not? 1 2 3 4 5

    By litespeed, December 11, 2008
    • 82 replies
    • 9.8k views
    • 
    • Pluto
    • December 31, 2008

18. Very bright light in the sky (2008)

    By arkain101, December 19, 2008
    • 4 replies
    • 8k views
    • 
    • modest
    • December 19, 2008

19. Moon Rings

    By Thunderbird, December 18, 2008
    • 7 replies
    • 3k views
    • 
    • Moontanman
    • December 19, 2008

20. Electric Rocket

    By Theory5, December 14, 2008
    • 6 replies
    • 3.8k views
    • 
    • Theory5
    • December 17, 2008

21. Distance to the Furthest Visible Objects

    By litespeed, December 10, 2008
    • 8 replies
    • 2.6k views
    • 
    • simcha
    • December 16, 2008

22. Sunspot Cycle 24

    By litespeed, December 14, 2008
    • 1 reply
    • 1.1k views
    • 
    • Turtle
    • December 15, 2008

23. Are Black Holes Hollow? 1 2 3

    By litespeed, November 21, 2008
    • 35 replies
    • 8.5k views
    • 
    • litespeed
    • December 10, 2008

24. Method of determining if Dark Matter is offset to our local dimension of space

    By Kharakov, December 4, 2008
    • 9 replies
    • 1.8k views
    • 
    • Kharakov
    • December 10, 2008

25. Globular clusters

    By Little Bang, November 24, 2008
    • 9 replies
    • 1.1k views
    • 
    • Pluto
    • December 2, 2008