Astronomy and Cosmology

3713 topics in this forum

1. Is this the Dark Matter Particle?

   By beecee, June 9, 2018
   • 14 replies
   • 1.8k views
   • 
   • YaDinghus
   • June 23, 2018

2. Black Holes Tutorial for lay people;

   By beecee, June 15, 2018
   • 5 replies
   • 916 views
   • 
   • beecee
   • June 15, 2018

3. Location of Pioneer 1 & 2

   By Nero, June 9, 2018
   • 23 replies
   • 2.5k views
   • 
   • swansont
   • June 15, 2018

4. Black Holes and/or Wormholes:

   By beecee, June 12, 2018
   • 2 replies
   • 916 views
   • 
   • beecee
   • June 15, 2018

5. Saturn's Formation and Early Evolution at the Origin of Jupiter's Massive Moons

   By T. McGrath, June 12, 2018
   • 4 replies
   • 1.2k views
   • 
   • beecee
   • June 13, 2018

6. Would this be the final confirmation re the Big Bang?

   By beecee, June 8, 2018
   • 5 replies
   • 1.1k views
   • 
   • beecee
   • June 9, 2018

7. Does the Oort Cloud protect us?

   By Hypercube, June 16, 2012
   • 24 replies
   • 7k views
   • 
   • MarkE
   • June 8, 2018

8. When did humans realize that there are another galaxies?

   By hamburger228, May 25, 2018
   • 5 replies
   • 898 views
   • 
   • Mordred
   • May 26, 2018

9. Surviving in a Black Hole

   By GlueOn, May 15, 2018
   • 11 replies
   • 1.9k views
   • 
   • icarus2
   • May 17, 2018

10. What planet is this?

    By mistykasumi, May 12, 2018
    • 8 replies
    • 1k views
    • 
    • Eise
    • May 13, 2018

11. Black Hole Binary Pairs:

    By beecee, May 12, 2018
    • 0 replies
    • 677 views
    • 
    • beecee
    • May 12, 2018

12. swimming on Titan

    By Gian, May 3, 2018
    • 10 replies
    • 1.7k views
    • 
    • Gian
    • May 10, 2018

13. Field Question 1 2 3 4 7

    By MikeAL, May 4, 2018
    • 151 replies
    • 15.2k views
    • 
    • MikeAL
    • May 9, 2018

14. Consciousness as a universal framework

    By Shane Bellone, May 9, 2018
    • 0 replies
    • 608 views
    • 
    • Shane Bellone
    • May 9, 2018

15. explanation of mechanism of moon capturing 1 2

    By Jon Steensen, May 4, 2018
    • 26 replies
    • 2.9k views
    • 
    • Airbrush
    • May 7, 2018

16. A question about Hubble's Law

    By Maartenn100, May 2, 2018
    • 7 replies
    • 1.8k views
    • 
    • Maartenn100
    • May 6, 2018

17. When we see the past through the telescope, why can we see whole galaxies moving away from us as one whole galaxy, while the stars in the front are younger then the stars we see in the back?

    By Maartenn100, May 2, 2018
    • 9 replies
    • 1.5k views
    • 
    • Maartenn100
    • May 2, 2018

18. I Took A Weird Photo during a Solar Eclipse last year

    By Aleman569, April 29, 2018
    • 2 replies
    • 908 views
    • 
    • Eise
    • May 1, 2018

19. Dark matter dark energy conundrum

    By wallflash, April 10, 2017
    • 20 replies
    • 3.1k views
    • 
    • beecee
    • May 1, 2018

20. Stuff in Space

    By Strange, April 10, 2018
    • 9 replies
    • 2k views
    • 
    • Strange
    • April 27, 2018

21. Radius of curvature of Spacetime

    By studiot, April 7, 2018
    • 16 replies
    • 2.2k views
    • 
    • studiot
    • April 26, 2018

22. Witnessing a Galactic Pileup:

    By beecee, April 25, 2018
    • 3 replies
    • 1.6k views
    • 
    • beecee
    • April 26, 2018

23. Is There an Eternity?

    By General_Bloodgeon, April 23, 2018
    • 11 replies
    • 1.7k views
    • 
    • General_Bloodgeon
    • April 25, 2018

24. Black holes and dark matter linked?

    By SimpleRick, April 18, 2018
    • 19 replies
    • 2.4k views
    • 
    • MigL
    • April 20, 2018

25. Parallax of the stars

    By sunshinesunshine, April 18, 2018
    • 10 replies
    • 1.2k views
    • 
    • Strange
    • April 18, 2018