Astronomy and Cosmology

3708 topics in this forum

1. Black Holes (split from: So, you've got a new theory...) 1 2

   By beecee, November 19, 2018
   • 32 replies
   • 2.4k views
   • 
   • hypervalent_iodine
   • November 20, 2018

2. black hole mass

   By 36grit, February 10, 2013
   • 13 replies
   • 2.4k views
   • 
   • krash661
   • April 29, 2013

3. How Bright Are Stars and How Many Different Ways Can Astronomers Determine a Star’s Brightness?

   By alex sam, July 22, 2010
   • 1 reply
   • 2.4k views
   • 
   • Martin
   • July 23, 2010

4. The 3Dimentions of Space

   By mooeypoo, December 13, 2003
   • 14 replies
   • 2.4k views
   • 
   • mooeypoo
   • December 14, 2003

5. Stellar Husbandry?

   By Xyph, September 21, 2005
   • 2 replies
   • 2.4k views
   • 
   • Xyph
   • September 22, 2005

6. Is the Earth a centre of universe?

   By Michael F. D., June 30, 2003
   • 12 replies
   • 2.4k views
   • 
   • Sayonara
   • October 27, 2003

7. Longest Day on Earth?

   By Guest Apocalypse, February 21, 2005
   • 8 replies
   • 2.4k views
   • 
   • Janus
   • February 23, 2005

8. The Black Hole Theory has a couple holes...

   By SilverRevlis, September 4, 2009
   • 11 replies
   • 2.4k views
   • 
   • Edtharan
   • October 1, 2009

9. Bell Island Boom

   By morgsboi, October 27, 2011
   • 0 replies
   • 2.4k views
   • 
   • morgsboi
   • October 27, 2011

10. Some help understanding the red shift hypothesis for quasars

    By atomiccolm, August 8, 2013
    • 3 replies
    • 2.4k views
    • 
    • swansont
    • August 8, 2013

11. Big Bang

    By David Levy, July 2, 2012
    • 7 replies
    • 2.4k views
    • 
    • Severian
    • July 9, 2012

12. Astronomy pictures

    By sunshaker, November 12, 2014
    • 11 replies
    • 2.4k views
    • 
    • Acme
    • October 3, 2015

13. Universe - Size and Age

    By Mowgli, March 27, 2007
    • 17 replies
    • 2.4k views
    • 
    • timo
    • April 5, 2007

14. How can quasars be so far away from earth?

    By Alan McDougall, June 6, 2009
    • 14 replies
    • 2.4k views
    • 
    • Alan McDougall
    • June 8, 2009

15. Big Bang

    By Guest Warhawk, June 21, 2003
    • 14 replies
    • 2.4k views
    • 
    • Sayonara
    • June 27, 2003

16. Jupiter

    By ads8525, April 3, 2008
    • 10 replies
    • 2.4k views
    • 
    • Arch2008
    • November 16, 2011

17. Does weight on earth vary as a function of earth-moon distance?

    By Griffon, March 16, 2013
    • 18 replies
    • 2.4k views
    • 
    • John Cuthber
    • April 2, 2013

18. Big Bang Basket

    By Ozman, January 24, 2003
    • 10 replies
    • 2.4k views
    • 
    • Ozman
    • January 25, 2003

19. Why do stars blink?

    By greg1917, May 15, 2003
    • 6 replies
    • 2.4k views
    • 
    • Radical Edward
    • May 17, 2003

20. Mars Exploration News thread

    By aommaster, January 11, 2004
    • 21 replies
    • 2.4k views
    • 
    • YT2095
    • January 16, 2004

21. What is a good first telescope?

    By apollo2011, September 3, 2003
    • 14 replies
    • 2.4k views
    • 
    • YT2095
    • January 16, 2004

22. The Big Bang - theories

    By Mebzy, July 19, 2012
    • 16 replies
    • 2.4k views
    • 
    • Mebzy
    • July 21, 2012

23. 19.4 earth masses of ice inside Saturn

    By granpa, February 9, 2016
    • 16 replies
    • 2.4k views
    • 
    • imatfaal
    • February 11, 2016

24. How does the primordial egg divide?

    By Nicholas, June 24, 2005
    • 7 replies
    • 2.4k views
    • 
    • darkkazier
    • July 26, 2005

25. Total Lunar Ecplipse Tonight

    By aurigus, October 27, 2004
    • 13 replies
    • 2.4k views
    • 
    • Gilded
    • October 28, 2004