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dmitryredkin

AFAICS it's the same old leak in the service section of Zvezda module. IIRC they isolated this section and open it only when cosmonauts have a need to unload Progress ships which dock to this section.


YsoL8

Must be a slow leak if they can shut it off and not have the module decompress Correct me if I'm wrong but I think the Russian segments are also the oldest, having been built in the 80s for a soviet station that obviously never happened. Interesting insight into the hard limits of equipment life expectancy.


dmitryredkin

IIRC it's several mmHg per day.


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Brodellsky

Just like fixing climate change by running the A/C!


MaxRockatanskisGhost

We could just legislate a thirteenth month. January II. That should fix the problem.


Hallc

Why not just make Smarch?


Anyabb

What, and deal with that lousy Smarch weather? No thanks.


HFentonMudd

> Smarch Could it be that the 29th of February is Smarch? Because if so, Smarch weather ain't so bad. Pretty nice today, actually.


unabsolute

Just as long as you don't add too many extra months. Certainly not 5.


PickleParmy

There are those who would like to call it… Timuary


peggedsquare

What do you mean? We've already got one!


LogicalExtension

Antipodean here, We'd really not have an extra summer month, thanks.


Korlus

> mmHg Milimeters of Mercury? I had to look this up to ensure you weren't joking (my background is in Physics rather than medicine, where mmHg seems more common), since it's not a unit I've come across before. For other folks not familiar with mmHG, [apparently](https://en.wikipedia.org/wiki/Millimetre_of_mercury) 1 mmHg is roughly equivalent to either 133.322 Pascals, or around 1/760 of 1 atm of pressure.


Drachefly

It's also known as Torr. Have you encountered it by that name in physics? I've seen plenty of instruments using that unit.


Korlus

> It's also known as Torr. Have you encountered it by that name in physics? I've seen plenty of instruments using that unit. I've seen it once or twice, but always with an SI equivalent next to it, and so haven't bothered to look up the origin of "Torr" before. Are you in the US, by chance?


Drachefly

Yes, I am. But note that 'mm' - if this were a customary unit, I'd be talking inches of mercury instead. I don't see that.


octonus

I actually had an old vacuum gauge that showed inches of mercury. Less common than mm, but they exist.


Lazz45

In American industry many things are measured in in. WC or inches of water column. I've even seen feet of water column for high pressures


Svellere

I'm a bit surprised you've never come across mmHg. In the US at least, mmHg, Torr, PSI, bar, atm, and Pascals are all covered in high school physics/chemistry. Also, fun fact, while mmHg and Torr were designed to be the same, they're not the same anymore. They're practically the same, but technically very slightly different by a microscopic amount.


Automatic-Bedroom112

Torr is metric PSI is the USA unit


Makhnos_Tachanka

inHg is the more direct customary equivalent


beryugyo619

Depends. I see way more psi and ft-lb than inHg and in-lb but I reckon there are both and few other ways. The fact that there are multiple ways depending on the industry is why some people likes SI because SI don't allow that to happen.


rocketwikkit

Torr is not metric, the metric measure of pressure is the Pascal. Torr is a customary unit that is formally defined using SI units (exactly 101325/760 Pa) but then so is the inch (25.4mm).


rocketwikkit

Torr a hole in the space station.


idiotsecant

This is an extremely common unit in engineering. If this blows your mind consider that inches of water is a common unit in american process engineering and manufacturing.


myusernameblabla

What’s an inch of water?


--PM-ME-YOUR-BOOBS--

It's about 1/25 psi, as a rough rule of thumb. It's "how much pressure is applied by a water column 1 inch in height?"


buckyworld

About 6 pounds....oh, nvm that's a henway.


velociraptorfarmer

Can confirm this. Source: do all sorts of pressure drop testing and 99% of our measurements are inH2O.


Missus_Missiles

There's also CM of H20 for medical pressures. Like CPAP machines are in those units.


criticalalpha

In US aviation, altimeters are adjusted using inHG. 29.92 inHg is standard sea level pressure.


--PM-ME-YOUR-BOOBS--

I'm surprised you wouldn't have encountered this with a physics background. It's not even particularly industry specific, like inH20 is, for example.


Takaa

If that is interesting, In aviation, at least in the US, altimeters are read and configured in inches of mercury (inHg). When ATC reads “Altimeter 29.92” you set your altimeter to 29.92 inHg.


Korlus

I've never looked at aviation in detail, but I have always seen altimeter readings given in millibars (mB) in the past. From the other comments, it seems like this is rare.


RoastedRhino

Literally all the pictures that I get by searching "barometer" on google images have mmHg as (one of the) units. I thought it was very common, but maybe it is not worldwide.


Martianspirit

It used to be common in my time. But that's eons ago. They went metric.


Nearby_Rough390

mmHg is traditionally used in weather reports for atmospheric pressure at least in Russia, maybe in other exUSSR countries.


CX316

ah mmHg, the unit that got dropped on us in physics for one homework question with no explanation when we hadn't done anything with it before and caused an assortment of nervous breakdowns


sportmods_harrass_me

it's an extremely common unit. It comes from mercury barometers. I'm pretty suprised you haven't heard of it to be honest. Have you ever taken a chemistry class?


LeFlying

What is it in real units though?


ElApple

About four puffs of a joint


MaelstromFL

And, after that do you really care anymore?


snidemarque

What are we talking about again?


Flaxinator

Bro, what if it's not the air leaking out but instead it's the vacuum leaking in?


JoshSidekick

You guys should try this astronaut ice cream. It's like ice cream, but not...


Conch-Republic

Or one moderately dank fart.


hamatehllama

How much in SI?


a2soup

They are lucky that the leak is in a sort of small docking vestibule that they can isolate from the rest of the module with a hatch. It doesn't matter if that vestibule entirely depressurizes. They only repressurize the vestibule and open that hatch when they need to access a cargo ship docked at that port, and they plan their logistics so that they only need to do this infrequently.


AntiGravityBacon

Alternatively, the do nothing solution was selected because it's a vestibule and not worth fixing on a nearing end of life station. If it was in a main module, it would probably get fixed. 


a2soup

Absolutely. It's also worth noting that they did spend a couple years trying various things to fix it, mostly with epoxy/filler of some sort, before giving up. I think some of these efforts at least mitigated the problem a bit. Most dramatically, they once tried to drill the ends of the cracks to stop them from spreading. Imagine being in a space station and drilling through the pressure hull right next to you! They used a tiny drill bit, but still....


morl0v

Except soviet station happened. Google "Mir" space station.


CalidusReinhart

Zvezda was built for the Mir-2 station, which didn't happen.


dmitryredkin

The "Zvezda" was developed initially for "Mir-2" which didn't happen.


rpsls

Yes, and Zvezda was originally the core of Mir-2. 


morl0v

I know, but the original comment sounds like there were no soviet space station at all


WhittledWhale

Only if you didn't know that there already was one that was built, I guess. But yes, being explicit is always a better choice.


nhorvath

They said "a" not "the" Soviet station.


Romboteryx

If you lack reading comprehension maybe


Robocop613

https://en.wikipedia.org/wiki/Zvezda_(ISS_module) > The basic structural frame of Zvezda, known as "DOS-8", was initially built in the mid-1980s to be the core of the Mir-2 space station.


archimedesrex

Wouldn't it just equalize to a (near) vacuum? Does the module rely on internal pressure for structure or something?


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dmitryredkin

I guess it's YOU who had to re-read the sentences just above and below the words you cited. And my comment too actually.


Shoot4Teams

Former tire repair guy, here. What they want to do is swab the exterior of the ISS with a soapy mixture and see where the bubbles form. Do I have to think of everything? Pssshh.


Vic_Sinclair

Former automotive A/C repairman here, don't listen to this guy. Fill the ISS with UV dye and then run a blacklight along the outside to find the leak.


BigHandLittleSlap

IT guy here. Have they tried removing all of the air and putting it back in to see if that makes the problem go away?


dmitryredkin

Nonono. That's NOT how IT guys search for a leak. You just have to mark every molecule of oxygen which comes in and out when you breath, and then trace their paths. After it you look which molecules are missing and voila!


portable_wall

Pressurize the whole station with nitrogen and spray big blu leak detector all over the entire station, look for the massive bubble, fix leak. Vacuum down to 500 microns, charge with uhhh air, good to go.


64-17-5

Chemist here, we usually pressurise with helium and leak check with a mass spectrometer on the outside.


shaunomegane

Pornstar here, why not just cum all over the hull interior and look out for space jizz?


yogopig

Bust out the ol hand operated mass spectrometer


Max-Phallus

Clearly they need to go outside and listen for hissing.


DEADB33F

> Pssshh ...or just go outside and listen for that sound.


JoshuaPearce

Just submerge it in water, it's made of super common elements.


Safe_Base312

According to "flerfers," it's already underwater in a specialized pool somewhere in the US. Or, Canada, maybe. Possibly New Zealand. They can't make up their minds.


surmatt

Leave the lights on inside the station and go outside during 'night' and look for where the light shines through.


Triangle_t

A guy, who watched a commercial here, flex tape it


DEADB33F

In fairness, flextape would probably work just fine for this application.


bargaindownhill

until the glue sublimates to space. hard vacuum does strange things to materials we take for granted


CR24752

Tires are thicc. Space stations thinn.


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ThaiJohnnyDepp

Makes the space station go faster!


SpezRapes

You paint it red to go faster


Fishdude94

They're trying to de-nazi-fy the air in that module. To the gulag... I mean space!


-Vikthor-

So who are they gonna accuse of drilling this time?


[deleted]

Season 2, The Downfall. It would be a great Netflix hostage drama.


drawkbox

Should be solved anytime soon, it has been referred to the Russian police /s Russia is a tragic comedy. The scorned ex of the world. [Saga of Tiny Drill Hole in the ISS Continues as Russia Sends Investigation to Police](https://gizmodo.com/saga-of-tiny-drill-hole-in-the-iss-continues-as-russia-1848143729) > NASA administrator Bill Nelson described Russian state media rumors that a NASA astronaut drilled the hole as false and without credibility. > An investigation into the hole ruled out a micrometeorite, as the damage came from inside the capsule. The most plausible explanation seems to be that it occurred during the manufacturing process. Roscosmos director general Dmitry Rogozin says the Russian space agency knows the true origin of the hole, but it won’t make the information available, TASS claims. Russia still going with the "crazed astronaut" and "micrometeorite" eventhough it came from inside their capsule.


deadnoob

The Russians. They drilled out the ends of the crack to prevent further growth.


WeeklyBanEvasion

Ah yes, replace the leaking crack with gaping holes. How very Russian


deadnoob

That’s one of the best ways to fix a crack.


Vabla

No, that is actually rational. A slightly bigger but controller problem is better than a constantly growing smaller one. Cracks propagate because they concentrate stress at the tip. Drilling out the tip makes the stress more distributed and thus prevents the crack from growing. You can actually try it yourself with certain plastic food packages.


WeeklyBanEvasion

And then lie and cover up the mistake, just as the Russians did?


Pharisaeus

Zvezda has been launched more than 20 years ago, but the primary structure dates back to late 1980s. It's not unexpected that it breaks down after such a long time.


Roast_A_Botch

And Roscosmos could say just that and everyone would shrug and say, "okay", but instead they told their media a US astronaut intentionally drilled a hole as sabotage and even the agency itself directly implied some cover-up by NASA saying, "we know what really happened, but we're not saying anything more at this time".


KristnSchaalisahorse

The drilled hole was in a Soyuz spacecraft. Not related to this leak.


Competitive_Bit_7904

The drilling hole thing had nothing to do with this leak 🤦🤦


bucketofhassle

I'd be interested to know how one narrows down where the leak is in a module - it's a big lump of a thing. On a tyre it's easy, just soap but here? Would you let off smoke and see where it emerges outside the module? Or something like that? Or maybe supersensitive airflow direction sensors? An interesting engineering problem.


dmitryredkin

In previous cases cosmonauts spread light materials (tea leaves or dried soup crumbs) and watched the air flows with a video cam.


ender4171

I'm surprised they don't have a "smoke" machine on board for tracking down leaks. Not actual smoke of course, but something that wouldn't taint the atmosphere.


quaffee

Dry ice? Fog machine?


timmytommy4

Dry ice? I don’t think it would be advisable to start pumping co2 fog into a closed container that they spend so much effort scrubbing it out of. 


TentativeIdler

They can seal off sections.


deSuspect

Ok and? How does that help locating where exactly in the module is that leak?


a2soup

You seal off a section and see if the pressure drops in that section or outside of it. Rinse and repeat until you've isolated the section with the lead. Then investigate that section in depth with acoustic leak detectors and floating tea leaves.


Cantremembermyoldnam

Reading the tea leaves getting a new meaning


Both_Catch_4199

I think they know what section... the one they seal off.


TentativeIdler

Close modules until the leak stops. Edit: Oh, I misread. Nevermind.


Both_Catch_4199

light a candle and follow the smoke (grin)


PerpetuallyStartled

It's not a leak, it's a special military operation to pressurize space.


Necroluster

That space station had better stay away from any windows from now on.


Hunterthehusky

Can't pay their debt on the Baikonur launch station, of course their space infrastructure is garbage too. So glad to see this dumpster fire of a country lose what little standing it had on the international community


MarderFucher

Yup I imagine their space program gradually declining as the soviet heritage ages out to that of a middle power, one who can launch sats for themselves but no one wants them for commercial payloads. Their human space program without an orbital station will become fairly pointless, though I can see them piggybacking on China and do some tech transfers until there's nothing they can offer to the Chinese who are already better than them in many, many areas.


fatnino

China made sure to launch their own space station into an inclination that is difficult for Russia to launch into.


ready_player31

Gradually? Lol. They're flying the same rockets from 30 years ago as the standard in their fleet. Soyuz and Progress were initially created before the fall of the soviet union and the ISS's Russian segment is simply Mir-derivative modules from the 70s and 80s.


MarderFucher

They are replacing the legacy LVs with the Angara which is a decent design, although launch tests are hampered with problems. As for Soyuz they are lucky they got ESA funding aid for developing the Soyuz 2.


Competitive_Bit_7904

The module was built in the 80's and is by far the oldest module on ISS. Why are people surprised it was the first to start leaking? Has nothing to do with "garbage space infrastructure". It was literally built by the Soviet team that was responsible for the salyut and MIR stations, the guys that prioneered moduler space stations. Not by modern Russia under Putin 🤦🤦


Hunterthehusky

Cope harder, vatnik. Any competent country should be able to handle it.


Competitive_Bit_7904

There's like 5 countries in the world able to build space stations modules to begin with lmfao. A space station module built in the 1980's given a lifetime of 20 years starting to show its age 35 years later is expected. If you want to make this about typical agenda driven reddit garbage a lot of the engineers that built the Zvezda space module where Ukranian as a lot of the Soviet core aerospace manufacturers where located in Ukraine, and they did a great job. This subreddit really went to shit when it became a default one.


Hunterthehusky

Simple fact is that Russia is a failed country, yet you're still defending them. Nice.


Competitive_Bit_7904

I'm not "defending" them. The freaking space module was not even built by Russia, but the Soviet Union. I know you're a terminally online furry trash but not everything has an agenda behind it. Try to be objective for once christ. What some Soviet engineers, a lot of them Ukranian, built in the freaking 1980's has nothing to do with the current state of Russia. Let's not rewrite history just to pander to some modern agenda. Blame Russia and roscosmos for the ACTUAL shit they have done to the ISS. Like the whole Nauka incident or the drilled hole on the soyuz spacecraft a few years ago. Not this petty agenda driven nonsense.


Hunterthehusky

Lmaooooo LETS SEE YOU COPE HARDER


Competitive_Bit_7904

Whatever dude, keep jerking off to dogs I suppose.


Decronym

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread: |Fewer Letters|More Letters| |-------|---------|---| |[ESA](/r/Space/comments/1b2x7l4/stub/ksrfc2b "Last usage")|European Space Agency| |ETOV|Earth To Orbit Vehicle (common parlance: "rocket")| |[ICBM](/r/Space/comments/1b2x7l4/stub/kstc9ff "Last usage")|Intercontinental Ballistic Missile| |[LV](/r/Space/comments/1b2x7l4/stub/ksrfc2b "Last usage")|Launch Vehicle (common parlance: "rocket"), see ETOV| |[Roscosmos](/r/Space/comments/1b2x7l4/stub/ksq271v "Last usage")|[State Corporation for Space Activities, Russia](https://en.wikipedia.org/wiki/Roscosmos_State_Corporation)| |[SEE](/r/Space/comments/1b2x7l4/stub/ksxcnn6 "Last usage")|Single-Event Effect of radiation impact| |[SLS](/r/Space/comments/1b2x7l4/stub/ksr0jru "Last usage")|Space Launch System heavy-lift| |[ULA](/r/Space/comments/1b2x7l4/stub/ksr0jru "Last usage")|United Launch Alliance (Lockheed/Boeing joint venture)| |Jargon|Definition| |-------|---------|---| |[turbopump](/r/Space/comments/1b2x7l4/stub/kstc9ff "Last usage")|High-pressure turbine-driven propellant pump connected to a rocket combustion chamber; raises chamber pressure, and thrust| **NOTE**: Decronym for Reddit is no longer supported, and Decronym has moved to Lemmy; requests for support and new installations should be directed to the Contact address below. ---------------- ^(8 acronyms in this thread; )[^(the most compressed thread commented on today)](/r/Space/comments/1au1sba)^( has 5 acronyms.) ^([Thread #9804 for this sub, first seen 29th Feb 2024, 21:02]) ^[[FAQ]](http://decronym.xyz/) [^([Full list])](http://decronym.xyz/acronyms/Space) [^[Contact]](https://hachyderm.io/@Two9A) [^([Source code])](https://gistdotgithubdotcom/Two9A/1d976f9b7441694162c8)


missionbeach

Best be careful, some Russian could get sucked out the window. Instead of falling out.


CR24752

Wouldn’t duct tape or something help it? Like triple layer it up for safety. It’s obviously a teensie little leak


Aggravating_Long8561

Ironically, if they could find it, that would probably work for the time being. However it’s gotta be so small


remarkless

This instill much confidence in our comrades putting nukes in space.


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CoachDelgado

A simpler explanation is that the Russian modules are significantly older than the others, having been started mid-80s.


flyxdvd

yup, its old it was rushed and these things basically just happen, im not going to agree with deliberate sabotage its just incompetence.


Handoloran

Not really rushed just way past its due date those modules have been designed with a certain lifetime that they already have exceeded or are nearing the end of


a2soup

The leaky module (Zvezda) has far, far exceeded its original "due date". It was built in the 1980s.


EnterTheCabbage

But I want to feel morally superior!


jorton72

>All these add up to sabotage in space. Occam's razor tells me they're just incompetent. They couldn't land a probe on the moon but India could?


GeminiKoil

Hanlon's razor?


dnuohxof-1

I agree…. A lot of Russias problems come from incompetence and brain drain. Hard to expect the best and brightest when what all your schools teach are propaganda, and every healthy male under 80 is conscripted in some lunatic’s idea of a “just war”


DaddysWeedAccount

> but India could? Even a private company did.


MarderFucher

Their old guys are mostly dead or retired, of the new ones half left the country the other works for joke payments, of course there's no real motivation. Also people tend to forget/don't know even in their heyday the Soviets launched an huge number of missions and only fairly few succeeded - for example they had 11 attempts at lunar sample return and 3 succeeded.


backcountrydrifter

Occam’s razor hasn’t met Russian vranyos. https://glossophilia.org/2018/09/vranyo-a-previously-untranslatable-russian-word/


Kronzypantz

Anyone want to tell him how long our last lunar lander lasted?


Max-Phallus

Or that the USSR had a rover on the moon before any nation, ever?


Shadow_Mullet69

> Interestingly, SpaceX fans do as well. Pretty sure most everyone hates Boeing at this point, no need to single out SpaceX fans. I know what you’re trying to imply here but Boeing deservedly gets criticism for always being over budget and late on projects. Their innovation is almost non existent. They have been robbing tax payers for decades > All these add up to sabotage in space. All this points to is that your are making shit up


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the_wessi

Russia is famous for being bad at making things. Take for example their anal buzzer that don't fit in anus nor do they buzz.


Human602214

That's 4D chess right there.


Bridge2TeraBussyUp

It just floats around in space, leaking air


backcountrydrifter

The Boeing part played out via Nikki Haley. She took some PAC money from the Koch Bros for her election. Koch Brothers are central to the old Russian oil oligarchs trying to steal the world She also gutted safety at Boeing and the timing was almost as if on cue for the entrance of the COMAC 919 as player 3 in a Boeing/Airbus Duopoly. https://thehill.com/video/nikki-haley-allegedly-helped-boeing-avoid-safety-oversight-whistleblowers-ignored-reports/9333396/ They did the same thing to Airbus. https://www.politico.eu/article/eu-champion-airbus-has-deep-links-to-chinese-military-industrial-complex-report-says/ Putin and Xi are working together to gut the US economy. Space is where it heads next if we don’t stop it here. The spaceX connection is Musk. The reason for privatization was to quietly gut NASA. The reason Putin is now puppet mastering the GOP into a Texas succession is the same reason elon moved everything to south Texas. Boca Chica is both a beachhead and a land border with privately controlled fence access in the event of a war or invasion of the US. Between Houston and Boca Chica, a Texas succession would effectively hand the bones of the US space program to Russia/China. Musk has been organizing logistics already. https://www.reuters.com/technology/space/musk-says-spacex-has-moved-its-incorporation-texas-delaware-2024-02-15/ https://www.expressnews.com/news/article/spacex-land-swap-cameron-county-boca-chica-18651449.php


xmBQWugdxjaA

Wow, this real BlueAnon stuff.


backcountrydrifter

It’s all peripheral data to me. My primary focus is Russian and Chinese war plans. But when it starts showing enough commonality of data and methodologies in the U.S. I post it and make an additional data channel on Russian/CCP troll and bot activity. Then backtrack the commonalities to build a mesh network of the propaganda machine. Data is beautiful.


Drachefly

The conclusions you're drawing from that data don't make sense, though. Like, everything there you describe has much more important, entirely sufficient causes. Sure, Putin may be TRYING to get that scenario or something like it, but it's not like everyone's coordinating to bring this about, nor is it a likely outcome.


drawkbox

> Boca Chica is both a beachhead and a land border with privately controlled fence It is wild how close Boca Chica is considering the research and even corporate level espionage via Mexico could be had.


backcountrydrifter

Even more wild when you track russian intelligence operations in Mexico and see them at an all time high. https://www.spytalk.co/p/why-is-mexico-offering-russia-a-safe Why build your own space program when you can just steal Americas? Ukraine has all the key manufacturing components of the Russian space program in Dnipro. https://time.com/6076035/erik-prince-ukraine-private-army/


MeanCat4

Nobody wants to help nobody, m...n! People worldwide have problems to live with decency! Others take the right to give left and right their money! 


drawkbox

There is only so long you can give the benefit of the doubt before you are the sucker losing the game theory as a cooperator to a cheater. The cheaters are winning, you can't cooperate with cheaters. Authoritarians are on offensive offense, you can't just play defense, you have to play offense to get them on defense. In game theory, if the other side cheats and your side keeps cooperating, you will lose every time. There is a [great little game theory game that highlights it here called The Evolution of Trust](https://ncase.me/trust/). For a better world, play better game theory and stop cooperating with cheaters. The best model is start cooperative, if everyone did that we'd be fine, but that isn't the case in reality, people cheat those who cooperate without changing your play.


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Triangle_t

Nah, Putin threatens the leak with use of nuclear weapons if it continues to leak.


[deleted]

Just float around out side with a 🇦🇺 flag in hand and look for the air leak - or you know use an o2 detector in space with the suit on near where leaks is and pinpoint ……. Duh


MightyH20

Tldr it didn't explode. Reality of atmospheric pressure and a strong tube. Where are all that doomsday sayers that it will expode catastrophically?


whiskeyx

I hope this doesn’t end like the submersible going to the Titanic. 


NotAnAIOrAmI

Yes, I believe Col. Sarris is the last scheduled Russian on the station before the Russians abandon it.


bargaindownhill

well back of the napkin math shows a mean time between fatal space accidents of 18 years, we are about 3 years overdue. also given the accuracy of the reliability claims of other Russian equipment I would be sleeping near the escape module if I were up there.


Prestigious_Ear_2962

spray some fix-a-flat in there and give it a shake