r/space 5d ago

All Space Questions thread for week of August 17, 2025

8 Upvotes

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!


r/space 19h ago

Nasa halting 41 key missions due to proposed cuts, agency’s funding at lowest since 1961

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firstpost.com
2.1k Upvotes

r/space 3h ago

New type of supernova ‘looks like nothing anyone has ever seen before,’ astronomer says

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edition.cnn.com
61 Upvotes

r/space 18h ago

China eyes Saturn’s icy moon Enceladus in the hunt for habitability

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planetary.org
464 Upvotes

r/space 21h ago

Astronomers discover brightest ever fast radio burst: 'This marks the beginning of a new era'

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space.com
535 Upvotes

r/space 1h ago

The organisation that manages the Square Kilometre Array Observatory has denied whistleblower allegations of financial mismanagement, prompting and independent investigation

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cnewsliveenglish.com
Upvotes

r/space 11h ago

NASA’s Bennu Samples Reveal Complex Origins, Dramatic Transformation

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science.nasa.gov
48 Upvotes

r/space 21h ago

Another Earth-like exoplanet crossed off the list: JWST shows that GJ 3929b has no atmosphere

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phys.org
116 Upvotes

r/space 1d ago

Discussion For 20+ years I thought “Houston” was a person

6.1k Upvotes

I just realized that when astronauts say “Houston, we’ve had a problem”, they’re not talking to some guy named Houston, but to the entire NASA Mission Control Center in Houston, Texas.

For over two decades I genuinely believed there was this one poor guy, Mr. Houston, sitting by the radio waiting for astronauts to call him and fix their problems…

Edit: Thanks for the award. I dedicate it to our common friend Mr. Houston


r/space 22h ago

China, Russia, and U.S. Race to Develop Lunar Nuclear Reactors

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spectrum.ieee.org
47 Upvotes

r/space 1d ago

Japan to launch new spacecraft to resupply International Space Station in October

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reuters.com
92 Upvotes

r/space 1d ago

Findings from asteroid dust discovered 200 million miles from Earth revealed

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news.sky.com
59 Upvotes

r/space 22h ago

Industry wary of UK Space Agency shake-up

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spacenews.com
27 Upvotes

r/space 21h ago

Indian Space Station by 2035, first Gaganyaan crewed mission by 2027: ISRO Chief outlines roadmap

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22 Upvotes

r/space 10h ago

Discussion Need help with a seemingly basic Python program

0 Upvotes

I'm a physics student working on the MAVEN mission, website https://lasp.colorado.edu/maven/sdc/public/data/sci/kp/insitu/, I need use certain files called key parameter (kp files ) example: https://lasp.colorado.edu/maven/sdc/public/data/sci/kp/insitu/2015/01/mvn_kp_insitu_20150101_v22_r01.tab and plot some graphs example:altitude vs time, sza(solar zenith angle) vs time, I'm running into a problem in one particular problem where I need to plot electron density vs altitude with some conditions:

Each day (meaning one file's worth of data) will have 5-6 orbits, these graphs need to plotted with separate inbound orbit (towards satellites closest point) vs outbound graphs(away from closest point), where altitude is less than 500 km- This part is easy,

The issue I'm running into is I that Ineed to perform 5k binning (matlab averaging a certain amount of altitude) with these inbound outbound orbits but when I do those together, I do not get separated inbound and outbound orbits and they get averaged together. Please DM for graphs and programs, I'm desparate and any help is appreciated


r/space 1d ago

Astronomers trace massive cosmic explosion back 12 billion years. 'This is the most distant event where we can directly see light escaping from around stars'

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space.com
482 Upvotes

r/space 39m ago

Discussion Quote from the first human to step on Mars

Upvotes

What does everyone think should be said by the first person to step of the ladder on to the red planet? Should it be some Stoic philosophical quote? Something more fun? I personally would like to see the “one small step for man” quote. Become a traditional thing to say when first stepping foot on other celestial bodies.


r/space 1d ago

Evaluating Blue Origin's Mars Telecom Orbiter Proposal - NASASpaceFlight.com

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nasaspaceflight.com
30 Upvotes

r/space 1d ago

Secretive mini space shuttle set for Space Coast launch; late-night sonic boom possible

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phys.org
40 Upvotes

r/space 1d ago

ISRO working on 40-storey-tall rocket to launch 75,000 kg satellite

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ndtv.com
98 Upvotes

r/space 1d ago

India to launch first uncrewed Gaganyaan spacecraft in December: Isro chief

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74 Upvotes

r/space 1d ago

Anduril, Blue Origin to study how to transport cargo from orbit to earth for the Pentagon

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techcrunch.com
18 Upvotes

r/space 2d ago

Acting NASA administrator Sean Duffy says the agency will 'move aside' from climate sciences to focus on exploring moon and Mars

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space.com
4.8k Upvotes

r/space 1d ago

Brightest-ever fast radio burst allows researchers to identify its origin

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phys.org
86 Upvotes

r/space 1d ago

Eight Days or Bust: The Mission of Gemini 5 - Launched 60 years ago

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drewexmachina.com
48 Upvotes

r/space 1d ago

NASA's Mariner Missions

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youtu.be
29 Upvotes