Astronomy and Cosmology

3708 topics in this forum

1. Heat Shields

   By ydoaPs, July 11, 2004
   • 10 replies
   • 2.7k views
   • 
   • [Tycho?]
   • July 12, 2004

2. Astronomer vs. Astrophysicist?

   By mooeypoo, August 28, 2007
   • 8 replies
   • 2.7k views
   • 
   • swansont
   • August 29, 2007

3. Ingredients of cosmos

   By dmg, May 28, 2012
   • 24 replies
   • 2.7k views
   • 
   • dmg
   • June 8, 2012

4. Explaining the "Brown-Dwarf desert"

   By Widdekind, May 17, 2009
   • 12 replies
   • 2.7k views
   • 
   • Widdekind
   • August 11, 2011

5. Trans-Stellar Planets

   By Moonguy, August 19, 2013
   • 20 replies
   • 2.7k views
   • 
   • arc
   • August 24, 2013

6. Your theories on anti-matter? 1 2

   By nightsky, January 26, 2018
   • 26 replies
   • 2.7k views
   • 
   • Strange
   • February 28, 2018

7. Solar System Planet Formation Times

   By Widdekind, June 23, 2009
   • 7 replies
   • 2.7k views
   • 
   • Widdekind
   • August 31, 2009

8. Can Sirius go supernova?

   By Kevin_Hall, January 13, 2022
   • 3 replies
   • 2.7k views
   • 
   • SergUpstart
   • January 26, 2022

9. Gravity model

   By Jacques, February 25, 2005
   • 21 replies
   • 2.7k views
   • 
   • Jacques
   • March 7, 2005

10. How fast is the universe expanding?

    By Physics5000, May 13, 2003
    • 18 replies
    • 2.7k views
    • 
    • elfin vampire
    • January 5, 2004

11. White Hole Decay becoming the higg’s field scalar 0?

    By Bigg’s Boson, December 28, 2017
    • 3 replies
    • 2.7k views
    • 
    • Mordred
    • December 28, 2017

12. Value of an Asteroid

    By Airbrush, September 15, 2017
    • 21 replies
    • 2.7k views
    • 
    • Enthalpy
    • September 26, 2017

13. Opening of "Phenomena of the natural parabola"

    By Valentin Dolzhenko, December 1, 2011
    • 1 reply
    • 2.7k views
    • 
    • Valentin Dolzhenko
    • September 14, 2012

14. Will the Universe ever stop expanding

    By Physics5000, May 14, 2003
    • 7 replies
    • 2.7k views
    • 
    • elfin vampire
    • January 4, 2004

15. Seti

    By us.2u, January 8, 2005
    • 21 replies
    • 2.7k views
    • 
    • us.2u
    • February 9, 2005

16. The Creation and Maintenance of Large Scale Cosmic Electric Charge Gradients!

    By Leif, August 18, 2013
    • 21 replies
    • 2.7k views
    • 
    • Leif
    • August 21, 2013

17. Do infinite space models contradict Olber's paradox?

    By Huldrich, August 29, 2012
    • 10 replies
    • 2.7k views
    • 
    • Spyman
    • September 14, 2012

18. Are quasars made up of dark matter?

    By petrushka.googol, October 8, 2013
    • 12 replies
    • 2.7k views
    • 
    • ГераÑ�им
    • October 27, 2013

19. Lots of good astronomy documentaries

    By CaptainPanic, May 31, 2010
    • 2 replies
    • 2.7k views
    • 
    • Nano
    • May 31, 2010

20. bull

    By Guest dwolf, June 5, 2004
    • 20 replies
    • 2.7k views
    • 
    • Sayonara
    • July 6, 2004

21. Why a colony on Mars, rather than on the Moon?

    By Cosmo_Ken, January 20, 2017
    • 16 replies
    • 2.7k views
    • 
    • harlock
    • March 10, 2017

22. The Big Bang Theory

    By Mowgli, November 2, 2008
    • 11 replies
    • 2.7k views
    • 
    • Edtharan
    • November 10, 2008

23. Elements From Supernovas

    By Airbrush, March 28, 2012
    • 6 replies
    • 2.7k views
    • 
    • Arch2008
    • March 30, 2012

24. Light bending, Dark Matter

    By alpha2cen, January 8, 2011
    • 11 replies
    • 2.7k views
    • 
    • amber r shaffer
    • January 22, 2011

25. Orbital energy

    By AtomSplitter, October 20, 2008
    • 15 replies
    • 2.7k views
    • 
    • Martin
    • October 21, 2008