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One hull crack located in ISS, another one suspected

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Re: One hull crack located in ISS, another one suspected

#251
post #66

Earlier quoted context omitted.

There has to be some revenue stream beyond just satellite launches and government research. Right now there's only so many reasons to go to space and a lot of those are pretty small markets or able to be served by one or very few provider(s) pretty well.

low attenuation fiber optic cables? https://madeinspace.us/capabilities-and-technology/fiber-opt... (similar to, but not the same as, zero attenuation fiber optic from the fictional book Artemis by Andy Weir) https://en.wikipedia.org/wiki/Artemis_(novel)

Is the new book any good? I liked Martian.

Re: One hull crack located in ISS, another one suspected

#252
post #54
post #42

Earlier quoted context omitted.

I think we need a "Space New Deal", I'm honestly saddened by the lack of progress in space in my lifetime. I mean we've done some great work, but we haven't made any giant leaps since getting to the moon 51.5 years ago. Thankfully, we do have SpaceX et. al. who really are making some big strides -- but how do we multiply & speed up that effort? ... sorry, I'm being selfish, but I really want to go to Mars.

> but how do we multiply & speed up that effort? I think it's pretty much politically impossible. The first big space push was mostly a political pissing match (i.e. not really driven by doing it for its own sake). It's pretty easy to come up with other major challenges that most people will consider more important that also aren't getting funding ... so private industry looks more likely to get some traction. States…

But Elon says they’ll land on Mars in 2026. Say it ain’t so.

Re: One hull crack located in ISS, another one suspected

#254
post #42

Earlier quoted context omitted.

I think we need a "Space New Deal", I'm honestly saddened by the lack of progress in space in my lifetime. I mean we've done some great work, but we haven't made any giant leaps since getting to the moon 51.5 years ago. Thankfully, we do have SpaceX et. al. who really are making some big strides -- but how do we multiply & speed up that effort? ... sorry, I'm being selfish, but I really want to go to Mars.

I've been watching a lot of documentaries about Mars and the more I learn the more it seems so incredibly daunting and overwhelming. The atmosphere isn't even thick enough to slow down properly from the massive speed you need to get there at a time scale that works. How do you land large colonization facilities, landers, etc. in an atmosphere that is 1% as dense as Earth's? How do you then have enough fuel to leave?…

I don’t think colonization of Mars is the future regardless, but landing on Mars isn’t more difficult than landing on the moon.

Re: One hull crack located in ISS, another one suspected

#255

Earlier quoted context omitted.

> If communism produces goods and services cheaper than the free market, we'd be awash in Soviet goods. Which we aren't, because they're undercut by Chinese goods...

No. Communism and planned economy are not capable of producing consumer goods. Source: I actually lived in the USSR.

Anecdotal evidence isn’t evidence. They’re capable, what they lack(ed) is the creativity to do so.

Re: One hull crack located in ISS, another one suspected

#256
post #66

Earlier quoted context omitted.

There has to be some revenue stream beyond just satellite launches and government research. Right now there's only so many reasons to go to space and a lot of those are pretty small markets or able to be served by one or very few provider(s) pretty well.

Frankly, I expect the zero-g sex market to be a pretty big draw for the folks with more money than sense.

Zero-g sex is extremely dangerous. There was an episode of the Universe about it.

Re: One hull crack located in ISS, another one suspected

#257
post #2

Materials aging in space is a pretty deep subject. That it is the Russian Zvevda module that is leaking/cracking is likely related to the fact that it is also the oldest module in the ISS. The ISS is/was scheduled to be retired in 2024 (aka 3 years from now) but there are calls to keep it going. My fantasy would be to have SpaceX move it into the Lunar L1 Lagrange point which would keep it in use but it would have to…

Exciting times.

The first wonder of the space: The ISS.

Re: One hull crack located in ISS, another one suspected

#260

Earlier quoted context omitted.

Full Disclosure: I have no financial interest in flex-seal. My general experience with glues is I'll use bolts. I can't get superglue to stick anything together other than my fingers. My rear view mirror fell off again, the third time I glued it on with superglue.

The trick with superglue is to make sure you have a really good contact between two clean surfaces. If you don't have that, superglue will do nothing for you and you're better off with something else. If you do, it's quite strong. The annoying thing is, glues work best when you use them in the exact situation (material, pressure, etc) they are designed for, but manufacturers are really vague about active ingredients…

I've had good luck with super glue when roughing and recleaning the interface surfaces. That said, cyanoacrylate (?) does seem to have sudden fracture failure, e.g. cracking.

When in doubt, I'm a firm believer in two part epoxy [0]. Fiberglass impregnated when necessary. Also stores easier!

And where water is involved (e.g. fiberglass shower tubs), marine epoxy like PC-11 [1]. Can attest it works fine as a multi-year shower patch.

[0] https://www.loctiteproducts.com/en/know-how/build-things/epo... [1] https://www.pcepoxy.com/products/permanent-repair/pc-11-past...

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