Astronomy and Cosmology

3712 topics in this forum

1. Is the amount of matter+energy of Universe constant? 1 2

   By dapifo, July 25, 2012
   • 25 replies
   • 12.5k views
   • 
   • dapifo
   • April 7, 2014

2. Potential Dark Matter Thumbprint in Galactic Center Gamma

   By Schneibster, April 5, 2014
   • 0 replies
   • 830 views
   • 
   • Schneibster
   • April 5, 2014

3. Dark energy 1 2

   By thomma, January 19, 2012
   • 26 replies
   • 5.7k views
   • 
   • Schneibster
   • April 4, 2014

4. Binary Systems orbits

   By Romron, March 28, 2014
   • 3 replies
   • 1.3k views
   • 
   • Cosmobrain
   • March 31, 2014

5. Apparent Red shift in a discrete Newtonian frame

   By LaurieAG, June 5, 2013
   • 7 replies
   • 2.5k views
   • 
   • LaurieAG
   • March 30, 2014

6. Galaxy rotation curve

   By ccwebb, March 24, 2014
   • 18 replies
   • 3.7k views
   • 
   • LaurieAG
   • March 30, 2014

7. Corrections to the Cosmic background radiation map?

   By RR Edwards, March 20, 2014
   • 6 replies
   • 1.3k views
   • 
   • Enthalpy
   • March 21, 2014

8. Gravity Waves Discovered

   By Airbrush, March 18, 2014
   • 1 reply
   • 917 views
   • 
   • StringJunky
   • March 18, 2014

9. Checking point sources in 2MASS All-Sky Point Source Catalog

   By Cosmolog, March 15, 2014
   • 0 replies
   • 692 views
   • 
   • Cosmolog
   • March 15, 2014

10. Can Sat science competition

    By TheFelixProject, March 13, 2014
    • 0 replies
    • 1k views
    • 
    • TheFelixProject
    • March 13, 2014

11. 100 billion galaxies?

    By derek w, March 10, 2014
    • 15 replies
    • 2.8k views
    • 
    • Cosmobrain
    • March 12, 2014

12. Expansion of space and planck length

    By JoshWallace, March 10, 2014
    • 4 replies
    • 1.4k views
    • 
    • ajb
    • March 11, 2014

13. Question about the shape of the Universe

    By Cosmobrain, March 6, 2014
    • 14 replies
    • 2k views
    • 
    • MigL
    • March 9, 2014

14. Huge amount of Dark Energy that Can't be seen... Why?

    By Lightmeow, March 8, 2014
    • 7 replies
    • 1.5k views
    • 
    • mathematic
    • March 9, 2014

15. How can the vacuum of space be "empty"

    By Lightmeow, March 7, 2014
    • 12 replies
    • 2.4k views
    • 
    • pantheory
    • March 8, 2014

16. Meassurement of the Fly By Speed Increment Anomalies ? 1 2

    By Bjarne, January 30, 2014
    • 44 replies
    • 4.8k views
    • 
    • imatfaal
    • March 7, 2014

17. Eridanus Super Void

    By 36grit, March 4, 2014
    • 3 replies
    • 1.3k views
    • 
    • Greg H.
    • March 5, 2014

18. Dark Matter mystery solved.

    By Cosmobrain, March 5, 2014
    • 1 reply
    • 821 views
    • 
    • swansont
    • March 5, 2014

19. What is Space? (continued)

    By ccwebb, January 22, 2014
    • 5 replies
    • 2k views
    • 
    • Cosmobrain
    • March 5, 2014

20. Dark matter.

    By Ctroxa, February 26, 2014
    • 8 replies
    • 1.6k views
    • 
    • Cosmobrain
    • March 5, 2014

21. A Thread Of Space Travel Speculation

    By MacLec, February 22, 2014
    • 3 replies
    • 1.6k views
    • 
    • Enthalpy
    • March 4, 2014

22. question...dark matter and black holes

    By hoola, February 17, 2014
    • 16 replies
    • 1.9k views
    • 
    • Enthalpy
    • March 4, 2014

23. Is ΛCDM considered "speculative?" 1 2

    By Schneibster, February 18, 2014
    • 29 replies
    • 3.3k views
    • 
    • ajb
    • March 1, 2014

24. gravitons and black holes: whats your view on how probable it is for gravitons to be the main composition for black holes

    By proton2701, February 23, 2014
    • 5 replies
    • 1.2k views
    • 
    • imatfaal
    • February 28, 2014

25. Rotating cosmos

    By Moontanman, February 27, 2014
    • 3 replies
    • 1.1k views
    • 
    • Moontanman
    • February 28, 2014