Astronomy and Cosmology

3604 topics in this forum

1. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 105 replies
   • 96.5k views
   • 
   • swansont
   • June 25, 2021

2. Cosmological Principle 1 2 3

   By Mordred, May 30, 2015
   • 52 replies
   • 32.7k views
   • 
   • michel123456
   • June 22, 2020

3. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 26.2k views
   • 
   • swansont
   • August 3, 2018

4. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 19.5k views
   • 
   • Altruist1
   • March 26, 2016

5. State of "matter" of a singularity 1 2 3 4 7

   By gatewood, June 21, 2021
   • 157 replies
   • 4.4k views
   • 
   • Mitcher
   • 20 hours ago

6. DART Mission

   By paulsutton, Tuesday at 02:13 PM
   • 3 replies
   • 122 views
   • 
   • paulsutton
   • Wednesday at 05:35 PM
7. How big is the Universe ?

   Topic was moved to forum Speculations

8. Universal Expansion Alternative Theory

   By Charon, September 9
   • 2 replies
   • 150 views
   • 
   • swansont
   • September 9

9. Frank Drake (1930 - 2022)

   By toucana, September 3
   • 1 reply
   • 135 views
   • 
   • Airbrush
   • September 8

10. Big Bang theory 1 2 3

    By amshion, October 17, 2021
    • 68 replies
    • 2.8k views
    • 
    • Mitcher
    • September 4

11. I need help understanding something.

    By nonameyet, September 1
    • 3 replies
    • 146 views
    • 
    • iNow
    • September 2

12. are we trying to look out of a black hole when trying to look at the past of the big bang ?

    By raphaelh42, July 14
    • 13 replies
    • 505 views
    • 
    • joigus
    • August 25

13. Stars revolving on the sky...

    By Externet, August 19
    • 1 reply
    • 134 views
    • 
    • Sensei
    • August 19

14. Does cosmic expansion ever end?

    By geordief, July 28
    • 7 replies
    • 341 views
    • 
    • Airbrush
    • August 14

15. Planetary atmospheres

    By Moontanman, August 10
    • 16 replies
    • 417 views
    • 
    • Moontanman
    • August 13

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

    By Gian, August 12
    • 10 replies
    • 350 views
    • 
    • MigL
    • August 13

17. Living away from earth (split from Mars gravity issue) 1 2

    By mistermack, January 12
    • 28 replies
    • 1.5k views
    • 
    • mistermack
    • August 7

18. Mond beats Dark Matter

    By QuantumT, July 11
    • 19 replies
    • 848 views
    • 
    • Markus Hanke
    • July 23

19. Red Shift Question

    By Fly135, July 21
    • 2 replies
    • 204 views
    • 
    • Fly135
    • July 23

20. What dictates the size of a star?

    By Kurious12, April 29
    • 13 replies
    • 510 views
    • 
    • swansont
    • July 12

21. Is the universe really 13.7 billion years old?

    By Kurious12, May 31
    • 12 replies
    • 699 views
    • 
    • Airbrush
    • July 11

22. An absurd search for dark matter

    By Enteves, June 5
    • 1 reply
    • 316 views
    • 
    • swansont
    • June 5

23. controllable universe?

    By Danijel Gorupec, May 28
    • 8 replies
    • 359 views
    • 
    • beecee
    • May 29

24. They report their independent image reconstruction of the M87 from the public data of the EHTC. Their result is different from the image published by the EHTC.

    By keremspace, May 14
    • 3 replies
    • 362 views
    • 
    • keremspace
    • May 14

25. Does our moon affect Earth's core

    By Kurious12, May 1
    • 21 replies
    • 1k views
    • 
    • Kurious12
    • May 9