Astronomy and Cosmology

3686 topics in this forum

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

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

2. Brown dwarf fusion

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

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

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

4. Gravitational pulses looking for clarification

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

5. Homopolar motor rotation in Vacuum

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

6. Black Hole week

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

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

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

8. universal history

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

9. Are years getting longer

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

10. Galaxies or black holes

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

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

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

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

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

13. Has a supernova ever been recorded?

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

14. Flight on an asteroid

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

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

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

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

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

17. Heat received from the sun

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

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

    By geordief, December 25, 2022
    • 28 replies
    • 1.2k views
    • 
    • Mordred
    • February 2, 2023

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

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

20. Are the stars of the constellation stationary?

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

21. dark matter question 1 2 3

    By hoola, January 1, 2023
    • 70 replies
    • 2.8k views
    • 
    • Mordred
    • January 27, 2023

22. Are inflation and expansion relativistic theories?

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

23. The Sunday Promenade on Titan

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

24. Dark Energy

    By Agent Smith, January 18, 2023
    • 17 replies
    • 760 views
    • 
    • Genady
    • January 23, 2023

25. Can we create Micro Climate Craters on Mars by deflecting Comets? Need Peer Review

    By PhotonBytes, January 7, 2023
    • 0 replies
    • 254 views
    • 
    • PhotonBytes
    • January 7, 2023