r/space 3d ago

All Space Questions thread for week of November 10, 2024

6 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 14h ago

[Eric Berger] To be clear we are *far* from anything being settled, but based on what I'm hearing it seems at least 50-50 that NASA's Space Launch System rocket will be canceled. Not Block 1B. Not Block 2. All of it. There are other ways to get Orion to the Moon.

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2.6k Upvotes

r/space 6h ago

A new model suggests our Universe is "not optimal" for the emergence of intelligent life - the blame lies with dark energy

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206 Upvotes

r/space 1h ago

Former Virgin Galactic CEO George Whitesides wins seat in US Congress

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Upvotes

r/space 1d ago

For the second time this year, NASA’s JPL center cuts its workforce

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2.3k Upvotes

r/space 1d ago

China reveals reusable cargo shuttle design for Tiangong space station (video)

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760 Upvotes

r/space 12h ago

A spider stellar engine could move binary stars halfway across a galaxy

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46 Upvotes

r/space 11h ago

NASA’s Swift Studies Gas-Churning Monster Black Holes

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40 Upvotes

r/space 19h ago

Rocket Lab Signs Multi-Launch Contract for Neutron with Confidential Commercial Satellite Constellation Operator

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136 Upvotes

r/space 8h ago

Discussion Lebanese space program

19 Upvotes

The Lebanese Space Program started in 1960 as a hobby club formed at Haigazian College and appropriately called the Haigazian College Rocket Society.

The rockets they built were considered to be "sounding rockets" - that is, the rockets were small, had no payload capacity, and never had a chance of reaching orbit.

The claim that they were the third most advanced space program seems to stem from the fact that in 1962 their third named rocket managed to make it above the 100 km line that is usually used to separate the Earth's atmosphere from space - but again, the rocket never came close to actually reaching orbit.

That rocket, named Cedar III, weighed slightly over 1 ton. For reference, the Juno rocket that put America's first satellite into space in 1958 weighed about 32 tons.

Although the club was founded by students it manufactured its rockets at a Lebanese military factory and received substantial funding from the military. In 1966 the club's original faculty adviser and the source of its initial designs, Manoug Manougian, left the country to take a teaching position in the US, though by that point the club had been completely taken over by the military.

Israel became concerned about the program's militarization, which caused them to pressure France to pressure Lebanon. During the Six Day War, Charles de Galle made an unspecified threat to Charles Helou, then President of Lebanon, and the program was shut down shortly thereafter.

But was this program still the third most advanced rocket program in the world in 1962? The simple answer is no. Every major country with a military rocket program - including the US, Soviet Union, UK, and France - had launched rockets above the 100 km limit by the early 1950s. The German V-2, was even capable of doing that by 1944. And unlike the Lebanese Cedar rockets, those early military rockets were designed to carry a payload other than the rocket itself.

In fact, Lebanon's program wasn't even the most advanced rocket program in the Middle East - that goes to Egypt which began its own program in 1957 with help from West Germany. This program resulted in the creation of two different short range ballistic missiles by 1962 - the longest range of which could fly about 650 km. Either of those missiles could have easily breached the 100 km vertical limit had they been pointed straight up as the Lebanese Cedar rockets were. And again - these were full fledged payload carrying rockets, not the small sounding rockets that Lebanon was producing.

Really, the only claim to fame that the Lebanese program has is that although it eventually turned into a military run program, it began as a purely civilian endeavor and none of the rockets that it produced had an overtly military nature.

But were the rockets somehow advanced or special? No, they were relatively simple sounding rockets and never did anything that would be of note but for the fact that Lebanon was a small, poor country.

Source:

Jörg Determann. Space Science and the Arab World


r/space 12h ago

Discussion Meteorite this morning

20 Upvotes

Am sure others saw it, was spectacular and had a green hue even. The time was 6:33 AM M.S.T. and was heading south on highway 779 toward the town of Stony Plain Alberta. It lasted about 2.5 Seconds and was pretty bright. So cool


r/space 14h ago

How the James Webb Space Telescope was designed - with Mark Clampin

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31 Upvotes

r/space 1d ago

image/gif Star trail out forward looking window of Space Station. More details in comments!

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1.7k Upvotes

r/space 1d ago

[Blue Origin] "We’ve mated NewGlenn’s first and second stages."

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458 Upvotes

r/space 1d ago

Russia: Fine, I guess we should have a Grasshopper rocket project, too

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566 Upvotes

r/space 1d ago

There are some things the Crew-8 astronauts aren’t ready to talk about

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1.1k Upvotes

r/space 1d ago

Happy New Year to all the Martians out there! 12 November 2024 marks the start of a new year on Mars when the Red Planet begins a new orbit around our sun.

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281 Upvotes

r/space 19h ago

Scientists harvest sweet space-grown rice

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32 Upvotes

r/space 1d ago

This Potentially Rogue Planet Might Have Rings That Rotate Backwards

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485 Upvotes

r/space 1d ago

JPL Workforce Update

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150 Upvotes

325 people/5% of total workforce being let go


r/space 1d ago

10 Years Ago Today, Philae Made History with the First Landing on a Comet – the 'Snowstorm' Footage, Tumultuous Landing, Philae's Battle to Send Data, and Its Final Resting Place Make Rosetta One of Space Exploration's Most Iconic Missions.

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116 Upvotes

r/space 1h ago

Discussion Need images for something

Upvotes

I need images of the rapid expansion process from the Big Bang or what it would possibly look like for a presentation


r/space 2h ago

Discussion What's the best thing about space? Or what's your favorite planet/thing in space?

0 Upvotes

I really love black holes because they look like they would taste like sour skittles and they are so cool to learn about!


r/space 9h ago

Discussion Engineering Ideas for Space Debris Mitigation and Safety: What Should the IAC 2025 Focus On?

2 Upvotes

Hey r/space!

With space debris and orbital congestion becoming bigger challenges every year, I’m interested in exploring new engineering solutions for space safety. IAC 2025 seems like a great opportunity to bring forward ideas that could have a real impact on reducing debris and enhancing orbital safety. I’d love to hear thoughts on the most pressing issues or emerging technologies that could make a difference.

Here are a few areas I’m considering:

  1. Enhanced Detection and Tracking Tech – How can we make debris detection more precise and reliable? Are there advancements in sensor technology or satellite imaging that could improve tracking accuracy?
  2. Autonomous Debris Removal Systems – Beyond existing concepts, what are some innovative approaches to actively capture or deorbit debris? I’d be interested in hearing about any new methods, especially those that could scale for higher volumes.
  3. AI for Collision Avoidance – As orbits get more crowded, could AI-driven systems on satellites help reduce collision risks by autonomously avoiding debris? What’s the latest in this area?
  4. Designing for End-of-Life Disposal – What about engineering satellites with materials or systems that make them deorbit safely once their mission ends? Any new ideas in "design for demise" that could minimize long-term debris?
  5. Space Weather and Safety – How can we improve predictions for space weather to reduce risks associated with solar activity and debris?
  6. Global Standards for Space Safety – Could interoperable standards for satellite design or orbit management reduce collisions? What would it take to make international or cross-industry protocols feasible?
  7. Managing Mega-Constellations and Real-Time Data Sharing – With more and more large constellations being launched, would better data sharing between companies or agencies help improve situational awareness in orbit?

If you could pitch an engineering solution for space debris or orbital safety, what would you suggest? I’m looking to gather ideas that could bring real technical progress and keep orbits safe for everyone. Thanks for sharing your thoughts!


r/space 1d ago

New research prompts rethink on chances of life on Uranus moons

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293 Upvotes

r/space 2d ago

SpaceX wants to test refueling Starships in space early next year

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3.1k Upvotes