All Space Questions thread for week of December 28, 2025
Please sort comments by 'new' to find questions that would otherwise be buried.
In this thread you can ask any space related question that you may have.
Two examples of potential questions could be; "How do rockets work?", or "How do the phases of the Moon work?"
If you see a space related question posted in another subreddit or in this subreddit, then please politely link them to this thread.
​
Ask away!
https://redd.it/1pxw9sw
@r_space
Please sort comments by 'new' to find questions that would otherwise be buried.
In this thread you can ask any space related question that you may have.
Two examples of potential questions could be; "How do rockets work?", or "How do the phases of the Moon work?"
If you see a space related question posted in another subreddit or in this subreddit, then please politely link them to this thread.
​
Ask away!
https://redd.it/1pxw9sw
@r_space
Reddit
From the space community on Reddit
Explore this post and more from the space community
The history and mechanics of R-23M "Kartech" The only gun ever fired in space.
https://redd.it/1pxsrcv
@r_space
https://redd.it/1pxsrcv
@r_space
I made my highest resolution image of the milky way yet (288 megapixels).
https://redd.it/1py4qbi
@r_space
https://redd.it/1py4qbi
@r_space
Reddit
From the space community on Reddit: I made my highest resolution image of the milky way yet (288 megapixels).
Explore this post and more from the space community
2026 will be the year NASA astronauts fly around the moon again — if all goes to plan
https://www.msn.com/en-us/news/technology/2026-will-be-the-year-nasa-astronauts-fly-around-the-moon-again-if-all-goes-to-plan/ar-AA1T7r3i
https://redd.it/1py786q
@r_space
https://www.msn.com/en-us/news/technology/2026-will-be-the-year-nasa-astronauts-fly-around-the-moon-again-if-all-goes-to-plan/ar-AA1T7r3i
https://redd.it/1py786q
@r_space
MSN
2026 will be the year NASA astronauts fly around the moon again — if all goes to plan
NASA’s plans to launch astronauts to the moon in early 2026. The Artemis II mission is expected to carry a crew around the moon — though not to the lunar surface.
Mercury: The planet that shouldn't exist
https://www.bbc.com/future/article/20251223-mercury-the-planet-that-shouldnt-exist
https://redd.it/1pye1q5
@r_space
https://www.bbc.com/future/article/20251223-mercury-the-planet-that-shouldnt-exist
https://redd.it/1pye1q5
@r_space
Bbc
Mercury: The planet that shouldn't exist
Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission arriving in 2026 might solve the mystery.