All Space Questions thread for week of October 12, 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.
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Ask away!
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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/1o4ue0y
@r_space
Reddit
From the space community on Reddit
Explore this post and more from the space community
Comet C/2025 A6 (Lemmon) will reach closest approach to Earth in 1,350 years on Tuesday, October 21st at 55.4 million miles - may be visible to naked eye [Image Credit to Victor Sabet & Julien De Winter]
https://redd.it/1o4xxo3
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https://redd.it/1o4xxo3
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Our Sun. Active Region of the Chromosphere. Captured by James Sinclair, Cedar City, Utah, USA
https://redd.it/1o517wx
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https://redd.it/1o517wx
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More Evidence Emerges That One of Saturn’s Moons Could Harbor Life
https://www.wired.com/story/more-evidence-emerges-that-one-of-saturns-moons-could-harbor-life/
https://redd.it/1o5ermt
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https://www.wired.com/story/more-evidence-emerges-that-one-of-saturns-moons-could-harbor-life/
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WIRED
More Evidence Emerges That One of Saturn’s Moons Could Harbor Life
Previously undetected organic compounds have been found in ice ejected into space from Enceladus, making the satellite a prime candidate for further research.
Boeing's defense and space unit partners with Palantir for AI adoption
https://finance.yahoo.com/news/boeings-defense-space-unit-partners-201334109.html
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https://finance.yahoo.com/news/boeings-defense-space-unit-partners-201334109.html
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Yahoo Finance
Boeing's defense and space unit partners with Palantir for AI adoption
Boeing has partnered with Palantir Technologies to use the software firm's AI solutions platform across the planemaker's defense and space unit, the companies said on Tuesday.
This might be the smallest clump of pure dark matter ever found | The dark object has a mass a million times greater than our sun, is located 10 billion light-years away and has no stars.
https://www.space.com/astronomy/dark-universe/this-might-be-the-smallest-clump-of-pure-dark-matter-ever-found
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https://www.space.com/astronomy/dark-universe/this-might-be-the-smallest-clump-of-pure-dark-matter-ever-found
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Space
This might be the smallest clump of pure dark matter ever found
The dark object has a mass a million times greater than our sun's is located 10 billion light-years away and has no stars.
New research challenges Uranus and Neptune's classification as 'ice giants', with some models suggesting most of their bulk could be in the form of rock
https://arxiv.org/abs/2510.00175
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https://arxiv.org/abs/2510.00175
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arXiv.org
Icy or Rocky? Convective or Stable? New interior models of Uranus...
We present a new framework for constructing agnostic and yet physical models for planetary interiors and apply it to Uranus and Neptune. Unlike previous research that either impose rigid...
Scientists have discovered that the weak region in Earth’s magnetic field over the South Atlantic has expanded by an area nearly half the size of continental Europe since 2014, weakening especially faster 2020 onwards.
https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/Swarm_reveals_growing_weak_spot_in_Earth_s_magnetic_field
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https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/Swarm_reveals_growing_weak_spot_in_Earth_s_magnetic_field
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ESA
Swarm reveals growing weak spot in Earth’s magnetic field
Using 11 years of magnetic field measurements from the European Space Agency’s Swarm satellite constellation, scientists have discovered that the weak region in Earth’s magnetic field over the South Atlantic – known as the South Atlantic Anomaly – has expanded…
NASA’s Jet Propulsion Laboratory will lay off 550 employees this week - 11% of its total workforce - in the latest round of job cuts at the space science center.
https://spacenews.com/more-layoffs-at-jpl/
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https://spacenews.com/more-layoffs-at-jpl/
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SpaceNews
More layoffs at JPL
NASA’s Jet Propulsion Laboratory will lay off 550 employees this week, the latest round of job cuts at the space science center.
The Strange Saga of the Great Texas Space Shuttle Heist
https://www.scientificamerican.com/article/moving-nasa-space-shuttle-to-texas-from-dc-could-damage-it-experts-say/
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https://www.scientificamerican.com/article/moving-nasa-space-shuttle-to-texas-from-dc-could-damage-it-experts-say/
https://redd.it/1o5t0s2
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Scientific American
Moving NASA Space Shuttle to Texas from DC Could Damage It, Experts Say
Texas lawmakers want to move the Smithsonian’s retired space shuttle to Houston. It’s “a vanity project that is apt to destroy a near-priceless American treasure,” one historian says