Astronomy and Cosmology

3705 topics in this forum

1. Gravity issues

   By GeeKay, August 22, 2014
   • 23 replies
   • 2.3k views
   • 
   • imatfaal
   • August 28, 2014

2. Velocity of Sun relative to CMB?

   By EdEarl, August 27, 2014
   • 1 reply
   • 1.1k views
   • 
   • Janus
   • August 27, 2014

3. Shape of planetary orbital paths 1 2

   By matterdoc, August 13, 2014
   • 26 replies
   • 6.2k views
   • 
   • Ophiolite
   • August 22, 2014

4. Distance, Shields and Life in Space

   By SpaceFan, August 14, 2014
   • 3 replies
   • 1.3k views
   • 
   • Enthalpy
   • August 19, 2014

5. Online astronomy resources!

   By TheExplorer, August 15, 2014
   • 3 replies
   • 1.3k views
   • 
   • Nicholas Kang
   • August 18, 2014

6. Voyager mission

   By Curiousabout, August 15, 2014
   • 5 replies
   • 1.4k views
   • 
   • Nicholas Kang
   • August 18, 2014

7. geology of Mars' Gale Crater and Mount Sharp

   By David Palmer, August 17, 2014
   • 0 replies
   • 630 views
   • 
   • David Palmer
   • August 17, 2014

8. Zombie Stars

   By Nicholas Kang, August 13, 2014
   • 6 replies
   • 2.2k views
   • 
   • Nicholas Kang
   • August 14, 2014

9. Why Big Bang?

   By june5197, August 7, 2014
   • 2 replies
   • 1.1k views
   • 
   • Carrock
   • August 11, 2014

10. expansion of space 1 2

    By `hýsøŕ, June 18, 2014
    • 39 replies
    • 4.3k views
    • 
    • MigL
    • August 11, 2014

11. Quantum Dark Energy

    By Royston, August 10, 2014
    • 1 reply
    • 885 views
    • 
    • ajb
    • August 10, 2014

12. Seeded Hawking radiation?

    By Enthalpy, August 9, 2014
    • 0 replies
    • 813 views
    • 
    • Enthalpy
    • August 9, 2014

13. What is space? 1 2 3

    By Dr. Funkenstein, June 12, 2014
    • 54 replies
    • 8.4k views
    • 
    • matterdoc
    • August 7, 2014

14. Are There Shooting Stars On Mars?

    By GeeKay, August 1, 2014
    • 11 replies
    • 1.8k views
    • 
    • CaptainPanic
    • August 7, 2014

15. When Schrödinger's Cat meets astronomy

    By MirceaKitsune, August 2, 2014
    • 15 replies
    • 2.2k views
    • 
    • MirceaKitsune
    • August 3, 2014

16. Heat death + dark energy, in regards to the quantum vacuum.

    By Sorcerer, July 26, 2014
    • 5 replies
    • 1.6k views
    • 
    • Mordred
    • August 3, 2014

17. Confused on relativity.

    By Sorcerer, August 1, 2014
    • 2 replies
    • 963 views
    • 
    • Strange
    • August 1, 2014

18. What gives the 4D universe its persistence?

    By Genecks, July 26, 2014
    • 10 replies
    • 1.5k views
    • 
    • hoola
    • July 27, 2014

19. A fractal universe?

    By Sorcerer, July 21, 2014
    • 6 replies
    • 1.4k views
    • 
    • Sorcerer
    • July 26, 2014

20. DARK MATTER & COLD

    By Dr. Funkenstein, July 22, 2014
    • 2 replies
    • 746 views
    • 
    • Strange
    • July 22, 2014

21. The thermodynamic arrow of time applied to a universe which is accelerating in expansion.

    By Sorcerer, July 21, 2014
    • 1 reply
    • 791 views
    • 
    • hypervalent_iodine
    • July 21, 2014

22. Stellar Parallax ?

    By Dart15, July 16, 2014
    • 4 replies
    • 1.3k views
    • 
    • Dart15
    • July 19, 2014

23. Gravity and pressure.

    By Гера�им, June 30, 2014
    • 20 replies
    • 2.9k views
    • 
    • Mordred
    • July 18, 2014

24. Neil DeGrasse Tyson's Different Perspective of Cosmos

    By ankitmn7, June 16, 2014
    • 5 replies
    • 1.6k views
    • 
    • `hýsøŕ
    • July 4, 2014

25. Fermi Paradox?

    By ydoaPs, June 23, 2014
    • 17 replies
    • 2.2k views
    • 
    • Spyman
    • July 2, 2014