Astronomy and Cosmology

3713 topics in this forum

1. Can life survive in the a galaxy's bulge? Between galaxies?

   By gib65, December 23, 2022
   • 6 replies
   • 1.1k views
   • 
   • mistermack
   • July 19, 2023

2. Ground speed of moon on earth

   By Saber, June 14, 2023
   • 20 replies
   • 1.7k views
   • 
   • Airbrush
   • July 18, 2023

3. could the moon be the remains of a planet that collided with earth?

   By boo, May 18, 2023
   • 2 replies
   • 573 views
   • 
   • Airbrush
   • June 29, 2023

4. Brown dwarf fusion

   By Moontanman, June 5, 2023
   • 2 replies
   • 437 views
   • 
   • swansont
   • June 5, 2023

5. The 2nd biggest bang we know about, 3c186

   By Airbrush, April 3, 2023
   • 17 replies
   • 1.3k views
   • 
   • Mordred
   • May 25, 2023

6. Gravitational pulses looking for clarification

   By Njwythe, May 23, 2023
   • 11 replies
   • 865 views
   • 
   • Genady
   • May 24, 2023

7. Homopolar motor rotation in Vacuum

   By StoyanNikolov, May 5, 2023
   • 3 replies
   • 417 views
   • 
   • StoyanNikolov
   • May 5, 2023

8. Black Hole week

   By paulsutton, May 2, 2023
   • 0 replies
   • 333 views
   • 
   • paulsutton
   • May 2, 2023

9. The Milky Way has Trapped the Large Magellanic Cloud With its Gravity.

   By paulsutton, April 25, 2023
   • 2 replies
   • 648 views
   • 
   • TheVat
   • April 25, 2023

10. universal history

    By Brainee, April 22, 2023
    • 1 reply
    • 498 views
    • 
    • Genady
    • April 22, 2023

11. Are years getting longer

    By Saber, April 12, 2023
    • 7 replies
    • 1.1k views
    • 
    • swansont
    • April 19, 2023

12. Galaxies or black holes

    By Brainee, April 14, 2023
    • 6 replies
    • 592 views
    • 
    • Airbrush
    • April 19, 2023

13. A Query About Books - Specifically Around the Subjects of Supernovae and Stellar Remenants

    By RyanJ, April 3, 2023
    • 2 replies
    • 489 views
    • 
    • Genady
    • April 10, 2023

14. Is the Big Bang theory a complete model of the universe?

    By caryunxwn, January 30, 2023
    • 5 replies
    • 1k views
    • 
    • paulsutton
    • March 11, 2023

15. Has a supernova ever been recorded?

    By gib65, February 25, 2023
    • 6 replies
    • 823 views
    • 
    • Ken Fabian
    • February 27, 2023

16. Flight on an asteroid

    By CrystalMagic, February 19, 2023
    • 0 replies
    • 498 views
    • 
    • CrystalMagic
    • February 19, 2023

17. Methods to Approximate the Rocket Equation with Air Resistances.

    By Flemish, February 14, 2023
    • 3 replies
    • 496 views
    • 
    • sethoflagos
    • February 16, 2023

18. A few Questions about Earths Orbital Speed Around the Sun.

    By TheCuriousMind, February 16, 2023
    • 6 replies
    • 741 views
    • 
    • studiot
    • February 16, 2023

19. Heat received from the sun

    By Saber, February 14, 2023
    • 8 replies
    • 797 views
    • 
    • exchemist
    • February 15, 2023

20. Does the expansion of a quantum system of particles cause the creation of new space? 1 2

    By geordief, December 25, 2022
    • 28 replies
    • 1.8k views
    • 
    • Mordred
    • February 2, 2023

21. Mars magnetic field (split from Mars and the dim sun paradox)

    By CrystalMagic, January 29, 2023
    • 2 replies
    • 552 views
    • 
    • studiot
    • January 30, 2023

22. Are the stars of the constellation stationary?

    By lightforyoou, January 26, 2023
    • 11 replies
    • 1.1k views
    • 
    • studiot
    • January 27, 2023

23. dark matter question 1 2 3

    By hoola, January 1, 2023
    • 70 replies
    • 4.3k views
    • 
    • Mordred
    • January 27, 2023

24. Are inflation and expansion relativistic theories?

    By geordief, January 23, 2023
    • 3 replies
    • 526 views
    • 
    • Genady
    • January 23, 2023

25. The Sunday Promenade on Titan

    By Gian, January 23, 2023
    • 0 replies
    • 325 views
    • 
    • Gian
    • January 23, 2023