Astronomy and Cosmology

3708 topics in this forum

1. Massive Entry Heats Up Atmosphere

   By VedekPako, February 10, 2010
   • 15 replies
   • 1.8k views
   • 
   • VedekPako
   • February 16, 2010

2. Black Hole, Grey Hole, Stephen Hawking, Worm Hole

   By Nicholas Kang, June 11, 2014
   • 4 replies
   • 1.8k views
   • 
   • Nicholas Kang
   • June 11, 2014

3. universal homogenization

   By lemur, May 24, 2011
   • 4 replies
   • 1.8k views
   • 
   • Widdekind
   • May 26, 2011

4. Origins, emergence and eschatology of the Universe: Dark Energy & Dark Matter

   By G Anthony, December 14, 2011
   • 5 replies
   • 1.8k views
   • 
   • Bart
   • March 10, 2012

5. Solar system - birth

   By David Levy, June 3, 2012
   • 10 replies
   • 1.8k views
   • 
   • Airbrush
   • June 4, 2012

6. Matter out of black holes?

   By johnandrew, March 7, 2016
   • 8 replies
   • 1.8k views
   • 
   • johnandrew
   • March 8, 2016

7. What is Trajectory Deflection Angle

   By Bjarne, January 26, 2014
   • 6 replies
   • 1.8k views
   • 
   • Bjarne
   • January 26, 2014

8. Universe expanding...

   By Externet, February 17, 2021
   • 12 replies
   • 1.8k views
   • 
   • zapatos
   • February 18, 2021

9. Excited about the Cassini Spacecraft?

   By matter, June 5, 2004
   • 9 replies
   • 1.8k views
   • 
   • admiral_ju00
   • July 8, 2004

10. Cosmology Questions

    By Giacomo525, February 6, 2006
    • 9 replies
    • 1.8k views
    • 
    • aguy2
    • February 7, 2006

11. Quasars show range of Luminosities ?

    By Widdekind, September 4, 2009
    • 6 replies
    • 1.8k views
    • 
    • Airbrush
    • September 11, 2009

12. Adaptive optics (optical telescopes)

    By Danijel Gorupec, June 4, 2015
    • 14 replies
    • 1.8k views
    • 
    • Enthalpy
    • July 17, 2015

13. Fussion in our sun

    By jordan, April 23, 2004
    • 4 replies
    • 1.8k views
    • 
    • swansont
    • April 23, 2004

14. Whats past the singularity of a black hole?

    By kirbsrob, March 14, 2014
    • 7 replies
    • 1.8k views
    • 
    • Mordred
    • May 8, 2014

15. no more darkmatter

    By CPL.Luke, October 11, 2005
    • 15 replies
    • 1.8k views
    • 
    • CPL.Luke
    • October 16, 2005

16. Time travel Possable?

    By Malice13111, February 5, 2014
    • 5 replies
    • 1.8k views
    • 
    • jeffellis
    • October 15, 2015

17. space's relation to the subatomic world

    By wade.daniel.w, April 8, 2009
    • 12 replies
    • 1.8k views
    • 
    • swansont
    • April 9, 2009

18. Earth atmosphere thickness and gravity of the Sun and moon.

    By alpha2cen, January 24, 2011
    • 2 replies
    • 1.8k views
    • 
    • D H
    • January 24, 2011

19. Star movment direction in an active galaxy

    By David Levy, May 27, 2012
    • 16 replies
    • 1.8k views
    • 
    • ACG52
    • May 29, 2012

20. Density of the sun's interior

    By Realitycheck, August 31, 2011
    • 2 replies
    • 1.8k views
    • 
    • imatfaal
    • September 1, 2011

21. time travel [possibilities and impossibilities]

    By *puffy* japanisthebest, November 20, 2011
    • 8 replies
    • 1.8k views
    • 
    • shawnhcorey
    • December 29, 2011

22. I believe the universe is electric

    By EMField, August 19, 2012
    • 11 replies
    • 1.8k views
    • 
    • JohnStu
    • September 14, 2012

23. No Universe without the BB:

    By beecee, June 15, 2017
    • 5 replies
    • 1.8k views
    • 
    • petrushka.googol
    • June 22, 2017

24. Why the massive bodies curves space?

    By Гера�им, October 4, 2013
    • 7 replies
    • 1.8k views
    • 
    • Strange
    • October 21, 2013

25. astronomy pics

    By Guy34life, June 23, 2003
    • 6 replies
    • 1.8k views
    • 
    • apollo2011
    • September 6, 2003