Astronomy and Cosmology

3708 topics in this forum

1. Asteroids As Gas Stations

   By Airbrush, July 11, 2019
   • 19 replies
   • 2.2k views
   • 
   • Curious layman
   • July 16, 2019

2. Telescopes: How do they work without using any Energy?

   By Dekan, April 19, 2011
   • 8 replies
   • 2.2k views
   • 
   • davey2222
   • July 28, 2011

3. Do Cosmological Neutrinos Redshift, too ?

   By Widdekind, December 6, 2010
   • 3 replies
   • 2.2k views
   • 
   • Martin
   • December 6, 2010

4. Cloud bands on Jupiter

   By Gareth56, August 21, 2011
   • 2 replies
   • 2.2k views
   • 
   • Gareth56
   • August 22, 2011

5. Question on Red Dwarf Binary Tidal Locking

   By Althistorybuff, March 19, 2017
   • 5 replies
   • 2.2k views
   • 
   • imatfaal
   • March 22, 2017

6. Big Bang - doubts ?

   By ravell, January 21, 2018
   • 9 replies
   • 2.2k views
   • 
   • Strange
   • January 28, 2018

7. Is it easy to shade the Earth for cooling? 1 2

   By Kevin_Hall, January 6, 2022
   • 26 replies
   • 2.2k views
   • 
   • mistermack
   • January 8, 2022

8. darkness

   By A Childs Mind, April 10, 2009
   • 19 replies
   • 2.2k views
   • 
   • Airbrush
   • April 14, 2009

9. Concerted response to the most common cosmo confusions

   By Martin, May 6, 2009
   • 18 replies
   • 2.2k views
   • 
   • jackson33
   • May 10, 2009

10. Why Kuiper belt asteroids are no spherical?

    By alpha2cen, November 8, 2010
    • 4 replies
    • 2.2k views
    • 
    • alpha2cen
    • November 9, 2010

11. Anti-Gravity??

    By NishanC, August 4, 2017
    • 9 replies
    • 2.2k views
    • 
    • MigL
    • August 10, 2017

12. What color is the sky on Mars?

    By Cosmo_Ken, December 2, 2017
    • 9 replies
    • 2.2k views
    • 
    • Cosmo_Ken
    • December 12, 2017

13. Kepler's 1st Law

    By brave_new_world, January 9, 2005
    • 11 replies
    • 2.2k views
    • 
    • DarthDooku
    • January 20, 2005

14. The Speed of Light

    By herme3, April 28, 2006
    • 13 replies
    • 2.2k views
    • 
    • S.Ingvar
    • June 16, 2006

15. Wormholes

    By Deadmeat, February 11, 2010
    • 13 replies
    • 2.2k views
    • 
    • Airbrush
    • February 23, 2010

16. The physics of Peter F. Hamilton's Nova Bombs?

    By Fanghur, February 2, 2018
    • 3 replies
    • 2.2k views
    • 
    • Fanghur
    • March 30, 2018

17. Basic knowledge of Astronomy and Astrophysics necessary in the field ? (For a youngster with an interest)

    By Arkryne01, May 21, 2014
    • 7 replies
    • 2.2k views
    • 
    • imatfaal
    • May 30, 2014

18. the science shows on directv speak of a asteriod/meteor will hit earth is it real ?

    By sandinista, August 28, 2007
    • 14 replies
    • 2.2k views
    • 
    • pioneer
    • September 25, 2007

19. Origin of Saturn's Rings — from Inner Moons ???

    By Widdekind, March 12, 2010
    • 2 replies
    • 2.2k views
    • 
    • Widdekind
    • March 28, 2010

20. Judging Jupiter's distance in the 1600's

    By Jiggerj, January 31, 2012
    • 12 replies
    • 2.2k views
    • 
    • Jiggerj
    • February 8, 2012

21. The Total Perspective Vortex, Astrology and one small piece of fairy cake

    By Gian, August 12, 2022
    • 22 replies
    • 2.2k views
    • 
    • dimreepr
    • November 24, 2022

22. Space Station on the Moon

    By DarthDooku, March 4, 2004
    • 12 replies
    • 2.2k views
    • 
    • Fluent in Lies
    • March 29, 2004

23. When Schrödinger's Cat meets astronomy

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

24. Why measure in Parsecs?

    By kenel, July 15, 2002
    • 8 replies
    • 2.2k views
    • 
    • Radical Edward
    • March 21, 2003

25. Rosetta-Why 10 Years?

    By Nicholas Kang, August 13, 2014
    • 14 replies
    • 2.2k views
    • 
    • Nicholas Kang
    • September 10, 2014