Astronomy and Cosmology

3705 topics in this forum

1. the nature of photons

   By Johanluus, June 28, 2010
   • 3 replies
   • 1.1k views
   • 
   • Spyman
   • July 8, 2010

2. A Question on Black Holes

   By Dajath, July 8, 2010
   • 1 reply
   • 1k views
   • 
   • Spyman
   • July 8, 2010

3. black holes or black solid?

   By oresti, June 18, 2010
   • 7 replies
   • 1.8k views
   • 
   • Cropduster23
   • July 7, 2010

4. hmmmmm im wondering

   By japan rocks/andromeda, June 28, 2010
   • 1 reply
   • 1.2k views
   • 
   • July281995
   • July 6, 2010

5. Planet detection by natural laser emission

   By Daumic, June 27, 2010
   • 0 replies
   • 736 views
   • 
   • Daumic
   • June 27, 2010

6. can we see it #2 ? 1 2 3

   By michel123456, June 9, 2010
   • 53 replies
   • 6.6k views
   • 
   • Spyman
   • June 27, 2010

7. Time viewed from the singularity?

   By caharris, June 26, 2010
   • 2 replies
   • 953 views
   • 
   • caharris
   • June 26, 2010

8. Beginning hypothesis

   By eoinmac, June 21, 2010
   • 4 replies
   • 1.4k views
   • 
   • michel123456
   • June 24, 2010

9. Why do the supernovas explode?

   By Nano, June 12, 2010
   • 17 replies
   • 3.4k views
   • 
   • Johanluus
   • June 23, 2010

10. Deceleration of particles with rest mass

    By Coneys, June 19, 2010
    • 8 replies
    • 1.8k views
    • 
    • Johanluus
    • June 23, 2010

11. Webb vs. Hubble

    By caharris, June 16, 2010
    • 1 reply
    • 959 views
    • 
    • mulreay
    • June 22, 2010

12. Defining a Singularity

    By rigney, June 3, 2010
    • 23 replies
    • 3.7k views
    • 
    • ajb
    • June 21, 2010

13. Perhaps... black holes aren't invisible

    By Baby Astronaut, June 15, 2010
    • 7 replies
    • 1.9k views
    • 
    • Baby Astronaut
    • June 19, 2010

14. Time

    By Anura, June 8, 2010
    • 14 replies
    • 1.9k views
    • 
    • Baby Astronaut
    • June 19, 2010

15. 706 new exoplanet candidates

    By Martin, June 16, 2010
    • 1 reply
    • 1.2k views
    • 
    • Airbrush
    • June 16, 2010

16. Errors in Big Bang Data Larger Than Thought?

    By Jacques, June 15, 2010
    • 4 replies
    • 1.3k views
    • 
    • caharris
    • June 16, 2010

17. Life Detected on Titan - What are your thoughts?

    By iNow, June 6, 2010
    • 18 replies
    • 2.4k views
    • 
    • Realitycheck
    • June 14, 2010

18. Infinite mass?

    By Anura, June 9, 2010
    • 12 replies
    • 2.2k views
    • 
    • swansont
    • June 11, 2010

19. How do we see "old" galaxies? 1 2

    By zapatos, May 18, 2010
    • 31 replies
    • 4k views
    • 
    • michel123456
    • June 9, 2010

20. Nuetron-stars

    By Anura, June 8, 2010
    • 3 replies
    • 1.1k views
    • 
    • Airbrush
    • June 9, 2010

21. ????

    By rigney, June 7, 2010
    • 5 replies
    • 1.4k views
    • 
    • rigney
    • June 7, 2010

22. Black holes

    By kavlas, June 7, 2010
    • 2 replies
    • 1.1k views
    • 
    • kavlas
    • June 7, 2010

23. what is expanding?

    By Johanluus, June 1, 2010
    • 20 replies
    • 3.3k views
    • 
    • michel123456
    • June 6, 2010

24. Parallel Lines #2

    By rigney, June 3, 2010
    • 4 replies
    • 960 views
    • 
    • rigney
    • June 5, 2010

25. What Is The Quasar?

    By KuaRk(t), May 6, 2010
    • 13 replies
    • 1.9k views
    • 
    • rigney
    • June 4, 2010