Space Exploration, Spaceflight and Astronomy

527 topics in this forum

1. Asteroid and atmosphere

   By Damien99, April 28, 2020
   • 17 replies
   • 373 views
   • 
   • Damien99
   • May 1, 2020

2. GW170817

   By Damien99, April 27, 2020
   • 10 replies
   • 446 views
   • 
   • Damien99
   • April 28, 2020

3. Do in the Universe is chaos reigning?

   By Weitter Duckss, January 28, 2020
   • 22 replies
   • 762 views
   • 
   • Weitter Duckss
   • April 15, 2020

4. What has Hubble seen on your birthday?

   By Eldorado, April 11, 2020   

   • hubble
   • 3 replies
   • 278 views
   • 
   • Eldorado
   • April 11, 2020

5. How can we avoid a mighty pile-up in space?

   Space Weather

   By Eldorado, March 14, 2020   

   • space weather
   • 1 reply
   • 298 views
   • 
   • and then
   • March 15, 2020

6. The unimaginable vastness of the universe. 1 2 3 4

   How insignificant we are in the grand order of things?

   By Alan McDougall, June 7, 2014
   • 86 replies
   • 12,309 views
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   • Waspie_Dwarf
   • March 11, 2020

7. Bootes void thoughts 1 2

   By Damien99, February 16, 2020
   • 32 replies
   • 1,159 views
   • 
   • Waspie_Dwarf
   • February 18, 2020

8. Dead galaxy 1 2 3 4

   By Damien99, February 9, 2020
   • 80 replies
   • 2,177 views
   • 
   • Damien99
   • February 18, 2020

9. Bootes void

   By Damien99, February 17, 2020
   • 14 replies
   • 474 views
   • 
   • Waspie_Dwarf
   • February 17, 2020

10. Betelgeuse and dimming 1 2

    By Damien99, February 8, 2020
    • 41 replies
    • 1,307 views
    • 
    • Habitat
    • February 17, 2020

11. Possible meteor fly by in eastern canada

    By Damien99, February 10, 2020
    • 9 replies
    • 407 views
    • 
    • joc
    • February 11, 2020

12. Star size comparison 2

    Shows the grand scale of the universe

    By South Alabam, January 30, 2020
    • 2 replies
    • 378 views
    • 
    • bison
    • February 1, 2020

13. Meteor spotted over Los Angeles

    By stereologist, January 31, 2020
    • 5 replies
    • 312 views
    • 
    • RoofGardener
    • January 31, 2020

14. Theory of Relativity and Time Travel

    Questions that aren't thoroughly explained about the Theory of Relativity and Going back in time

    By Mx449, November 23, 2019
    • 8 replies
    • 641 views
    • 
    • stereologist
    • January 31, 2020

15. Is Space Real? Are the stars holographic????

    By IsSpaceReal, January 30, 2020
    • 9 replies
    • 465 views
    • 
    • Saru
    • January 30, 2020

16. Comoving distance- light travel distance 1 2 3

    Let's solve this mystery

    By Weitter Duckss, November 19, 2019
    • 56 replies
    • 1,805 views
    • 
    • Weitter Duckss
    • January 29, 2020

17. Michigan’s second international dark sky park

    By rashore, January 21, 2020
    • 3 replies
    • 254 views
    • 
    • quiXilver
    • January 22, 2020

18. Planets may form after dust sticks together

    By The Eternal Flame, December 9, 2019
    • 2 replies
    • 337 views
    • 
    • Debra F. II
    • January 16, 2020

19. Sky-watcher captures red flash on the moon

    By The Eternal Flame, December 7, 2019
    • 17 replies
    • 676 views
    • 
    • Manwon Lender
    • January 4, 2020

20. Is the Christmas star real?

    By The Eternal Flame, December 5, 2019
    • 14 replies
    • 470 views
    • 
    • Mr.United_Nations
    • January 2, 2020

21. What plants would look like on other planets

    10mins video

    By Eldorado, November 9, 2019
    • 22 replies
    • 643 views
    • 
    • ocpaul20
    • December 23, 2019

22. ESPRESSO: The Spectrograph to Find Earth 2.0

    By alfa015, December 14, 2019
    • 4 replies
    • 331 views
    • 
    • Tatetopa
    • December 17, 2019

23. Starlink Sats, Brisbane/Gold Coast 6 Dec

    satellites on display..

    By ChrLzs, December 6, 2019
    • 6 replies
    • 363 views
    • 
    • ChrLzs
    • December 11, 2019

24. Plans for Moon Landing in the 1600s

    By The Eternal Flame, December 5, 2019
    • 0 replies
    • 346 views
    • 
    • The Eternal Flame
    • December 5, 2019

25. Mars scientist investigate ancient life in AU

    By The Eternal Flame, November 18, 2019
    • 1 reply
    • 306 views
    • 
    • tmcom
    • December 5, 2019