Astronomy and Cosmology

3685 topics in this forum

1. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 105 replies
   • 103.5k views
   • 
   • swansont
   • June 25, 2021

2. Cosmological Principle 1 2 3

   By Mordred, May 30, 2015
   • 52 replies
   • 36k views
   • 
   • michel123456
   • June 22, 2020

3. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 27.3k views
   • 
   • swansont
   • August 3, 2018

4. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 20.5k views
   • 
   • Altruist1
   • March 26, 2016

5. Asteroid defense ideas

   By Airbrush, Wednesday at 02:29 AM
   • 6 replies
   • 149 views
   • 
   • Mordred
   • 8 hours ago

6. Sunshine on Titan 1 2

   By Gian, March 22
   • 27 replies
   • 712 views
   • 
   • swansont
   • Sunday at 07:53 PM
7. Introduction to the Theory of Unity

   Topic was moved to forum Speculations

8. A Speculative Description of Dark Matter and Dark Energy

   Topic was moved to forum Speculations

9. Monolith asteroids: a Silent Order.

   By GeeKay, April 5
   • 2 replies
   • 151 views
   • 
   • GeeKay
   • April 5

10. The Beginning of the Universe 1 2 3 4 6

    By Chris Sawatsky, November 12, 2023
    • 145 replies
    • 4k views
    • 
    • Mordred
    • April 5

11. Interview invitation for YouTube channel

    By Viktoriia, April 4
    • 1 reply
    • 113 views
    • 
    • swansont
    • April 4
12. RICHARD DAWKINS ❤ CANCEL CULTURE (or not)

    Topic was moved to forum Politics

13. Gravitational effect and pressure of photons in Friedmann equation?

    By icarus2, March 31
    • 12 replies
    • 313 views
    • 
    • Mordred
    • April 2

14. I really need your help with some calculations 1 2

    By tmdarkmatter, March 17
    • 28 replies
    • 614 views
    • 
    • tmdarkmatter
    • March 23

15. Expansion of space- Split from: Alabama court - "Embryos are people"

    By npts2020, March 1
    • 16 replies
    • 334 views
    • 
    • MigL
    • March 10

16. Novel Dark Matter & Energy Hypothesis

    By exchemist, March 9
    • 1 reply
    • 162 views
    • 
    • Genady
    • March 9

17. Airlines And Other Private Companies Going Into The Space Industry 1 2

    By Photon Guy, October 5, 2023
    • 45 replies
    • 1.7k views
    • 
    • TheVat
    • February 14

18. Bringing Samples Back From Mars

    By Photon Guy, January 31
    • 5 replies
    • 333 views
    • 
    • Ken Fabian
    • February 5

19. Could we observe the present ? 1 2

    By Time Traveler, February 1
    • 30 replies
    • 1.3k views
    • 
    • Phi for All
    • February 3

20. Object faster or just as fast as light

    By Irma, August 28, 2023
    • 16 replies
    • 1k views
    • 
    • Janus
    • January 30

21. Determining distance (split from Cosmic Megastructure Challenges Theories of the Universe

    By Luc Turpin, January 13
    • 0 replies
    • 199 views
    • 
    • Luc Turpin
    • January 13

22. Space Exploration Within Our Solar System

    By Chris Sawatsky, January 11
    • 2 replies
    • 212 views
    • 
    • Phi for All
    • January 12

23. Lunar lander mission leaking fuel from Vulcan rocket, mission in jeapardy

    By Paulsrocket, January 8
    • 0 replies
    • 119 views
    • 
    • Paulsrocket
    • January 8

24. How can a big bang expand to an infinite size? 1 2 3 4 5

    By Airbrush, November 25, 2023
    • 116 replies
    • 5.6k views
    • 
    • Markus Hanke
    • January 8

25. How is it known that the CMB is everywhere in the Universe when

    By Paulsrocket, January 3
    • 10 replies
    • 559 views
    • 
    • MigL
    • January 4