Astronomy and Space

1,484 topics in this forum

1. Space junk

   By bearnard55, February 12, 2021
   • 0 replies
   • 674 views
   • 
   • bearnard55
   • February 12, 2021

2. crewed or uncrewed space missions

   By bearnard55, February 8, 2021
   • 2 replies
   • 789 views
   • 
   • bearnard55
   • February 11, 2021

3. Can such space technology make preservation of the environment on Earth

   By bearnard55, February 10, 2021
   • 0 replies
   • 568 views
   • 
   • bearnard55
   • February 10, 2021

4. The Sun`s exploration

   By bearnard55, February 4, 2021
   • 0 replies
   • 610 views
   • 
   • bearnard55
   • February 4, 2021

5. The most advanced private space company of the present time

   By bearnard55, January 16, 2021
   • 2 replies
   • 845 views
   • 
   • bearnard55
   • February 1, 2021

6. Trade Agreements Between Humans and UFOs

   By Vmedvil2, January 30, 2021
   • 0 replies
   • 606 views
   • 
   • Vmedvil2
   • January 30, 2021

7. Technology can be used to measure the extent of desertification

   By bearnard55, January 27, 2021
   • 1 reply
   • 671 views
   • 
   • write4u
   • January 27, 2021

8. Star brightening, then dimming over the course of about a minute

   By Af82l8, January 22, 2021   

   • 2021
   • january
   • (and 3 more)

     Tagged with:

     • 2021
     • january
     • astronomy
     • star brightens
     • star anomily
   • 2 replies
   • 834 views
   • 
   • Af82l8
   • January 22, 2021

9. Do You Think We Are Alone In The Milky Way? 1 2

   By alfa015, March 1, 2019
   • 30 replies
   • 3.3k views
   • 
   • bearnard55
   • January 6, 2021

10. The problem of crushing Starship

    By bearnard55, January 5, 2021
    • 0 replies
    • 550 views
    • 
    • bearnard55
    • January 5, 2021

11. A Quantum Mechanical Interpretation of the Consequences of Special Relativity

    By jamesfairclear, January 3, 2021   

    • time dilation
    • special relativity
    • (and 1 more)

      Tagged with:

      • time dilation
      • special relativity
      • quantum theory
    • 1 reply
    • 877 views
    • 
    • LaurieAG
    • January 4, 2021

12. The water on Mars

    By bearnard55, December 31, 2020
    • 1 reply
    • 736 views
    • 
    • OceanBreeze
    • January 2, 2021

13. The most advanced space tech

    By bearnard55, December 30, 2020
    • 0 replies
    • 581 views
    • 
    • bearnard55
    • December 30, 2020

14. Microsatellites

    By bearnard55, December 29, 2020
    • 0 replies
    • 489 views
    • 
    • bearnard55
    • December 29, 2020

15. The journey to the red planet

    By bearnard55, December 29, 2020
    • 0 replies
    • 484 views
    • 
    • bearnard55
    • December 29, 2020

16. What happened to Mars? 1 2 3 4 5

    By Anchovyforestbane, September 22, 2020
    • 82 replies
    • 6.7k views
    • 
    • Anchovyforestbane
    • November 22, 2020

17. Capture Image Of Black Hole

    By hazelm, April 10, 2019
    • 3 replies
    • 1.5k views
    • 
    • amateurastronomer
    • November 5, 2020

18. Argon Thought Experiment

    By Anchovyforestbane, November 2, 2020   

    • astrochemistry
    • 0 replies
    • 708 views
    • 
    • Anchovyforestbane
    • November 2, 2020

19. The First Object Launched Into Space

    By Vmedvil2, June 21, 2019
    • 2 replies
    • 1.6k views
    • 
    • Josmellon
    • October 30, 2020

20. Can astrology have a scientific basis? 1 2 3 4 5

    By hallenrm, February 20, 2006
    • 76 replies
    • 14.6k views
    • 
    • Josmellon
    • October 30, 2020

21. Do You Think There Are Planets Around Alpha Centauri?

    By alfa015, April 9, 2020
    • 1 reply
    • 1.1k views
    • 
    • Josmellon
    • October 30, 2020

22. Black Holes Are Like A Hologram

    By Thoth101, June 14, 2020
    • 2 replies
    • 1.2k views
    • 
    • Josmellon
    • October 30, 2020

23. What Kind Of Universe Is Suitable For Life?

    By ScienceAndUniverse, June 19, 2020
    • 1 reply
    • 965 views
    • 
    • Josmellon
    • October 30, 2020

24. How Can The Universe Expand Faster Than Light?

    By ScienceAndUniverse, June 20, 2020   

    • expansion of universe
    • faster than light
    • (and 1 more)

      Tagged with:

      • expansion of universe
      • faster than light
      • speed of light
    • 3 replies
    • 1.2k views
    • 
    • Josmellon
    • October 30, 2020

25. Black Holes Explained - 5 Ways To Know They Exist

    By ScienceAndUniverse, June 21, 2020   

    • black hole
    • black hole explained
    • (and 1 more)

      Tagged with:

      • black hole
      • black hole explained
      • how do we know
    • 9 replies
    • 1.6k views
    • 
    • Josmellon
    • October 30, 2020