Astronomy and Cosmology

3686 topics in this forum

1. Water Transport to Habitable Planets

   By Widdekind, March 16, 2009
   • 1 reply
   • 966 views
   • 
   • GDG
   • March 30, 2009

2. Water Water Everywhere...

   By Klaynos, April 12, 2007
   • 10 replies
   • 1.8k views
   • 
   • mamakosj
   • May 12, 2007

3. Water, water, everywhere!!

   By beecee, March 1, 2018
   • 0 replies
   • 600 views
   • 
   • beecee
   • March 1, 2018

4. Water...and blueberry muffins on mars?

   By kenel, March 3, 2004
   • 0 replies
   • 1.1k views
   • 
   • kenel
   • March 3, 2004

5. We and cosmic scales

   By Genady, January 18, 2022
   • 6 replies
   • 771 views
   • 
   • iNow
   • January 19, 2022

6. we are in early stage of big bang ,,and there would be a black whole in center of universe

   By qasimchef, October 22, 2016
   • 5 replies
   • 1.4k views
   • 
   • Phi for All
   • October 23, 2016

7. We're getting farther from the Great Attractor (anyone have details on this?)

   By Martin, January 30, 2010
   • 0 replies
   • 1.4k views
   • 
   • Martin
   • January 30, 2010

8. Weakly Interacting Sub-eV Particles

   By Enthalpy, September 11, 2013
   • 0 replies
   • 626 views
   • 
   • Enthalpy
   • September 11, 2013

9. wear and tear

   By Armor, January 12, 2012
   • 4 replies
   • 1.2k views
   • 
   • Armor
   • January 13, 2012

10. Webb vs. Hubble

    By caharris, June 16, 2010
    • 1 reply
    • 917 views
    • 
    • mulreay
    • June 22, 2010

11. Wednesday, LHC to recreate birth of universe

    By Arch2008, September 10, 2008
    • 1 reply
    • 1.1k views
    • 
    • YT2095
    • September 10, 2008

12. Weight Loss during Solar Eclipse

    By Encryptor, October 16, 2017
    • 6 replies
    • 2.7k views
    • 
    • swansont
    • February 15, 2022

13. Weird Mars pictures

    By Keano, October 31, 2005
    • 6 replies
    • 1.3k views
    • 
    • AzurePhoenix
    • October 31, 2005

14. Weird thought about gravity...

    By Falkon, December 18, 2008
    • 23 replies
    • 2.7k views
    • 
    • Klaynos
    • December 23, 2008

15. Were they closer to the sun?

    By TransformerRobot, July 24, 2013
    • 9 replies
    • 1.3k views
    • 
    • swansont
    • July 25, 2013

16. What "blobs" caused CMB anisotropies ?

    By Widdekind, November 14, 2012
    • 8 replies
    • 1.6k views
    • 
    • Widdekind
    • November 17, 2012

17. what a Tool!

    By YT2095, November 26, 2008
    • 2 replies
    • 1k views
    • 
    • ajb
    • November 26, 2008

18. What am I observing? 1 2 3 4

    By JohnLesser, March 20, 2017
    • 88 replies
    • 8k views
    • 
    • JohnLesser
    • March 26, 2017

19. what are some facts supporting the Big Rip?

    By youroriginal, February 13, 2017
    • 3 replies
    • 1.1k views
    • 
    • imatfaal
    • February 14, 2017

20. What are the consequences of pole reversals on Earth?

    By Juryoku, May 11, 2011
    • 4 replies
    • 1.4k views
    • 
    • Airbrush
    • May 11, 2011

21. What are the explanations for greater than C space-time expansion? 1 2

    By wucko, May 9, 2012
    • 47 replies
    • 7.8k views
    • 
    • Markus Hanke
    • February 6, 2021

22. What are the stages of life of a star of spectral class O?

    By PhantomAvocado, June 22, 2014
    • 2 replies
    • 968 views
    • 
    • Mordred
    • June 22, 2014

23. What came first in spiral galaxy? 1 2 3

    By David Levy, December 13, 2015
    • 53 replies
    • 5.8k views
    • 
    • David Levy
    • January 8, 2016

24. What can Curiosity do?

    By Airbrush, August 10, 2012
    • 1 reply
    • 788 views
    • 
    • Fuzzwood
    • August 10, 2012

25. What can we really learn about the effects of microgravity?

    By dimreepr, December 15, 2015
    • 5 replies
    • 1.2k views
    • 
    • swansont
    • December 16, 2015