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Astronauts told to return to ISS after sheltering over air leak repairs

bbc.com

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Re: Astronauts told to return to ISS after sheltering over air leak repairs

#271

Post by marcosdumay »

tedd4u wrote: post #159

I found this interesting: NASA RELL (Robotic External Leak Detector) [1]. "NASA’s Robotic External Leak Locator (RELL) is a robotic, remote-controlled tool that helps mission operators detect the location of an external leak and rapidly confirm a successful repair. … Two instruments working in sync give RELL its ammonia-detecting superpowers. … Mass spectrometer & Ion vacuum pressure gauge" [1] (PDF fact sheet from N…

How cool, "ion vacuum pressure gauge" is basically a conductivity sensor with ionizing voltage.

Now I wonder if it basically lasts forever or if it has problems with corrosion.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#272

Post by dmos62 »

Tuna-Fish wrote: post #239
Kye wrote: post #205

Earlier quoted context omitted.

It's an almost 30 year old nearly 500 ton structure subjected to radiation, bombardment by starstuff and debris, the stresses of docking and undocking, of boosts, and of constant heating and cooling as it passes in and out of the sun. Getting a clear picture of the comings and going of gasses is probably not easy.

Also in 2021, Nauka (the cursed Russian module) arrived on the station, and accidentally fired thrusters while attached, fighting against the attitude control of the station, flipping it around 540 degrees and putting a lot of stress that the station wasn't designed for on all the structural parts.

I'm proud of us that multiple nations can coordinate such a complicated project for so long.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#273

Post by testing22321 »

Tuna-Fish wrote: post #239
Kye wrote: post #205

Earlier quoted context omitted.

It's an almost 30 year old nearly 500 ton structure subjected to radiation, bombardment by starstuff and debris, the stresses of docking and undocking, of boosts, and of constant heating and cooling as it passes in and out of the sun. Getting a clear picture of the comings and going of gasses is probably not easy.

Also in 2021, Nauka (the cursed Russian module) arrived on the station, and accidentally fired thrusters while attached, fighting against the attitude control of the station, flipping it around 540 degrees and putting a lot of stress that the station wasn't designed for on all the structural parts.

Somehow I never heard about that. Do you know of a good article that goes into detail about it?

Thanks

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#274

Post by jonah »

Forgeties79 wrote: post #265
ChoGGi wrote: post #225

Earlier quoted context omitted.

I don't think you can be an astronaut on the ISS without being a handyman, and the handyman's secret weapon is duct tape.

Trust me, grab some yards of gaff tape and try it out. You’ll thank me later!

In general, gaffer's tape is the superior product, but for this use case, I'm thinking that duct tape with its solid backed film and thicker adhesive might be more airtight.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#275

Post by Tuna-Fish »

testing22321 wrote: post #273
Tuna-Fish wrote: post #239

Earlier quoted context omitted.

Also in 2021, Nauka (the cursed Russian module) arrived on the station, and accidentally fired thrusters while attached, fighting against the attitude control of the station, flipping it around 540 degrees and putting a lot of stress that the station wasn't designed for on all the structural parts.

Somehow I never heard about that. Do you know of a good article that goes into detail about it? Thanks

This is a decent overview:

https://www.engineering.com/the-nauka-module-iss-mishap-what...

It was surreal to follow when it was happening, NASA was seriously underplaying what was going on and it was up to amateurs with telescopes looking at the station to tell the world that the situation is still ongoing.

This is one of the three major mishaps related to Nauka.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#276

Post by ActorNightly »

l23k4 wrote: post #259
ActorNightly wrote: post #248

Earlier quoted context omitted.

Why post anything online? Im getting the sense that you are here to defend Space X and Elon Musk on the battlefield of internet forums.

I certainly am not. The only positive thing I have to say about those two is that SpaceX has cool rocketry tech. >Why post anything online? Typically people post things on HN for different reasons than they do on reddit or bsky, but your post seems like a much better fit for reddit or bsky. These types of factually nonsensical ideological signaling posts are popular on those websites, but are generally considered to…

>factually nonsensical ideological signaling posts

Oh you mean like the endless spam about how Macs are the best laptops and computers in the world, being able to run large models at dogshit low tok/sec for the price of twice what would it take to build an equivalent dual 3090 desktop that will be much faster?

Furthermore, there is nothing wrong with calling out shit companies ran by shit people, that present a real danger to the world.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#277

Post by sigmoid10 »

threwrfaway wrote: post #270
sigmoid10 wrote: post #262

Earlier quoted context omitted.

>the OP, which in fairness I didn't read. Why are you commenting then if you don't even know what the topic of the conversation is? Just to distract from the issue with unrelated facts to defend mother Russia's image? Do you even realize how much like a propaganda troll account you sound?

You didn't even know who you were replying to! You spewed BS about the Soyuz, which isn't part of the ISS. Well if minor Soyuz problems are in play, I raise you two Shuttle disintegrations and a Boeing craft since the last fatal Soyuz accident in 1971. You know instead of throwing "Russian troll darts" try practicing "strategic empathy", instead of letting your emotions blind you about engineering principles. Sone po…

You didn't even know what the topic of the conversation is!

And you just keep digging yourself in instead of admitting you were wrong. But everything you say makes you look more desperate.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#278

Post by picofarad »

malfist wrote: post #231
opan wrote: post #217

Earlier quoted context omitted.

The same kapton tape used in electronics? Never heard it called space tape.

It was invented for NASA

Regardless of the veracity of this statement I will now use this term for at least the rest of my life.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#279

Post by l23k4 »

ActorNightly wrote: post #276
l23k4 wrote: post #259

Earlier quoted context omitted.

I certainly am not. The only positive thing I have to say about those two is that SpaceX has cool rocketry tech. >Why post anything online? Typically people post things on HN for different reasons than they do on reddit or bsky, but your post seems like a much better fit for reddit or bsky. These types of factually nonsensical ideological signaling posts are popular on those websites, but are generally considered to…

>factually nonsensical ideological signaling posts Oh you mean like the endless spam about how Macs are the best laptops and computers in the world, being able to run large models at dogshit low tok/sec for the price of twice what would it take to build an equivalent dual 3090 desktop that will be much faster? Furthermore, there is nothing wrong with calling out shit companies ran by shit people, that present a real…

>Furthermore, there is nothing wrong with calling out shit companies ran by shit people, that present a real danger to the world.

But you didn't call anybody out.

Re: Astronauts told to return to ISS after sheltering over air leak repairs

#280

Post by Lalabadie »

Lalabadie wrote: post #110
echoangle wrote: post #73

Earlier quoted context omitted.

Some problems i can see with that: It might be hard to access the actual pressure hull from the inside (there's probably insulation and padding on top) If you use paint, you somehow have to get rid of the solvent in it when it dries, which might be a problem when painting a whole module

Air filtration is one of the hardest things do deal with in space. I don't know what solvents would do, but I remember that astronauts' bone density loss in space means there are challenges around managing the significant amount of calcium captured by the air scrubbers in the ISS.

Edit: My bad, with calcium it's the liquid filters that deal with it, not the air scrubbers.

Quoting an ISS astronaut: Today's coffee is tomorrow's coffee.

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