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Another Russian spacecraft at ISS has a coolant leak

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Re: Another Russian spacecraft at ISS has a coolant leak

#51

From what I've heard these leaks were caused by a micrometeor impact, but I am not up there checking myself... https://www.reuters.com/lifestyle/science/micrometeoroid-str...

When you start seeing repeated failures in the same place the micrometeorites theory looks less likely.

Re: Another Russian spacecraft at ISS has a coolant leak

#52

Earlier quoted context omitted.

It wasn’t that long ago they drilled a hole in a Soyuz, then patched it with epoxy and sent it up anyway, only for the epoxy to come out and cause a leak.

As far as I can tell, the evidence for the hole being drilled then epoxied on Earth amounts to nobody wanting to believe the alternative (that it was drilled while in orbit.) Here is the hole. Personally, I don't see any trace of epoxy in or around this hole: https://upload.wikimedia.org/wikipedia/commons/3/3f/Hole_in_... (To be clear, it's the small hole, not the big one next to it. The small hole next to the paint…

I’ve worked with epoxy quite a bit, and delaminating is one of its failure modes. That is, sometimes it flakes off cleanly without leaving much behind.

Having said that, it’s hard to believe that there wouldn’t be traces of epoxy inside that very rough hole, or in the bare metal exposed by the drill bit. So it seems odd to me also.

Re: Another Russian spacecraft at ISS has a coolant leak

#53

From what I've heard these leaks were caused by a micrometeor impact, but I am not up there checking myself... https://www.reuters.com/lifestyle/science/micrometeoroid-str...

It was plausible for the first case. But when the second time it happened on the Russian section again one starts to wonder if there was more to the story. I.e. why have not micrometeorites hit equipment of other countries?

Re: Another Russian spacecraft at ISS has a coolant leak

#54

Earlier quoted context omitted.

It's there to give the Space Shuttle program a reason to exist.

But the space shuttle program ended a decade ago?

That's the (sad) joke. The shuttle was one element of a larger plan, where the shuttle was an enabler of the broader plan but not really a useful end in itself (vs other rockets, etc.). The rest of the plan was cancelled before being built, but the shuttle existed. There was a mostly-post-hoc justification of military/IC missions (on orbit servicing of national security assets, and "nonconsensual servicing" of foreign/hostile objects on orbit...), but this was mostly turf protection. ISS was than mostly to compete with Mir, and then became some combination of "justify the shuttle we have at home" and then "jointness missions with Russia".

Re: Another Russian spacecraft at ISS has a coolant leak

#55
post #39

Earlier quoted context omitted.

It wasn’t that long ago they drilled a hole in a Soyuz, then patched it with epoxy and sent it up anyway, only for the epoxy to come out and cause a leak.

Also not that long ago, they tried launching a Proton M which had the angular velocity sensors installed upside down: https://www.russianspaceweb.com/proton_glonass49.html#culpri... Looks like decades of rampant corruption and political violence are not exactly good for high-tech industry. Who would have thought?

Once in KSP Iinstalled MechJeb (a modded autopilot component) upsidedown and my rocket failed in precisely this way, trying to make a u-turn right off the launch pad. Pretty funny to see it happen IRL, since nobody got hurt.

Re: Another Russian spacecraft at ISS has a coolant leak

#56

Earlier quoted context omitted.

> What possible reason would the Russians have to sabotage their own side of their won space craft? Some people believe the Nord pipeline blowup was self-sabotage. Update: I did not say I believe this myself. I'm just using this as a counter argument to say that the reasons might not be obvious at first glance and people tend to believe all sorts of things.

I don’t know if you guys are being deliberately obtuse with stuff or what, but the Nordstream pipeline can deliver gas to Germany—that’s it. If circumstances change such that Russia no longer wants to deliver gas to Germany, the pipeline has no value to them. It doesn’t matter that it’s theirs. It’s not like they can use it for something else.

I did not say I believe that.

Re: Another Russian spacecraft at ISS has a coolant leak

#57

Are we at the point we should start suspecting sabotage? Or is this just usual Russian incompetence? This maybe news cycle bias, but since the Ukraine war, and threat of Russian pulling out of ISS program, these malfunctions have been more visible. Is anyone tracking these and similar incidents publicly?

> is this just usual Russian incompetence? I don't think there is an impression of that or really ever has been. Russia has successfully launched humans into space more regularly and at a lower cost than the US for the last 60 years. (Well until the last few years) I think it's more likely that this is just an occurrence of something akin to the birthday paradox and sometimes things just happen. It's the narrative du…

'last 60 years' doesn't really mean much when it's been obvious in the past 2 decades or so that their capabilities have been deteriorating rapidly compared to what they once were.

They haven't sent an interplanetary science mission in decades, their next-generation vehicles are constantly delayed or unreliable, Nauka was an entire 12 years behind schedule and so on.

Now on top of that, they're under heavy sanctions and are experiencing further brain drain from people fleeing conscription. It's clear that they're having to cut more and more corners to keep up. Plus, for Russia it has only been 30 years, the time under the USSR should not be considered comparable considering that much of their aerospace talent was in/from Ukraine (which is also why Ukraine punched above its weight in the space sector).

Russia also simply hasn't invested into maintaining the necessary pool of talent. We're starting to get to the point where the people who had significant experience from the soviet space program will be starting to become less and less available.

Re: Another Russian spacecraft at ISS has a coolant leak

#58
post #32

Earlier quoted context omitted.

But… they want to sell gas.

Right up until they prefer to deliver retribution by withholding gas.

Right, but the weapon is not the cutting of the supply, it's the threat. The fear that comes with uncertainty.

There is no uncertainty when the pipeline is damaged irreparably.

Re: Another Russian spacecraft at ISS has a coolant leak

#59
post #23

Earlier quoted context omitted.

USSR =! Russia. Majority of main advances came from the satellites, such as Ukrainians (Glushko, Korolev, chelomei, etc.).

Not to mention some of the early tech having German origin (same in the West).

I wasn't referring to the USSR. Had I wanted to refer to the USSR, I would have typed "USSR". My point is that the West doesn't have a monopoly on great ideas and innovation. The existing Russian (and others) state is not a conglomerate of incompetence, and has plenty of advanced engineering feats under her belt.

I am suggesting it is not just disingenuous, but unwise to be so dismissive of Russian capabilities, especially when the geopolitical atmospher is the way it is right now.

Re: Another Russian spacecraft at ISS has a coolant leak

#60

This comment section looks ridiculous. If the purpose of propoganda stories is to paint the Russians as untrustworthy to the Western world (hint: that is the purpose!) then it is surely effective.

[flagged]

Yeah, right. It's only propaganda when it's coming from the enemy's side.

As an ethnic Russian who has never been to that country and has no love lost for Putin's regime, I am feeling less and less sympathy towards "the West" the longer this shit drags on.

Even though I have absolutely zero responsibility for this war, I was shat upon and called every name in the book from the likes of you pretty much every day for the past year. I'm noticing that it's definitely taking its toll on my worldview.

Your politicians were absolutely fine with Putin's regime when he was building up his power (for 20 years!) and destroying whatever was left of the opposition inside the country, because hey, cheap gas and oil, and money paid for that gas and oil were stolen by his cronies and funneled back into London and New York.

Now that this finally came back to bite you, my friends and relatives are somehow deemed responsible. Fuck off.

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