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499 points perihelions | 1 comments | | HN request time: 0s | source
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nabla9 ◴[] No.42191758[source]
October 2023 there was similar incident where Chinese cargo ship cut Balticonnector cable and EE-S1 cable. Chip named 'Newnew Polar Bear' under Chinese flag and Chinese company Hainan Xin Xin Yang Shipping Co, Ltd. (aka Torgmoll) with CEO named Yelena V. Maksimova, drags anchor in the seabed cutting cables. Chinese investigation claims storm was the reason, but there was no storm, just normal windy autumn weather. The ship just lowered one anchor and dragged it with engines running long time across the seabed until the anchor broke.

These things happen sometimes, ship anchors sometimes damage cables, but not this often and without serious problems in the ship. Russians are attempting plausible deniability.

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cabirum ◴[] No.42192160[source]
After the Nordstream pipeline attacked and destroyed, its reasonable to expect shortened lifetimes for undersea cables and sattelites.
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nradov ◴[] No.42194448[source]
Yes, this is why having a prompt satellite launch capability to replace attrition losses is now a strategic imperative. We need to be able to put up new ones in a matter of hours, not months.
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Gud ◴[] No.42194640[source]
If someone starts blowing up satellites it’s pretty much game over for space based communications.

https://en.m.wikipedia.org/wiki/Kessler_syndrome

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tialaramex ◴[] No.42196406[source]
Kessler is often overplayed. Kessler trashes a low orbit and you wouldn't want to launch more birds into the trashed orbit. But, loads of com sats live in MEO or GEO, which is far too high for the numbers to work. They're all fine.

You will even see Kessler cited as some sort of barrier to leaving, which is nonsense.

Imagine there's a 1x1m spot where on average once per week, entirely at random and without warning a giant boulder falls from the sky and if you're there you will be crushed under the boulder. Clearly living on that spot is a terrible idea, you'd die. But merely running through it is basically fine, there's a tiny chance the boulder hits you by coincidentally arriving as you do, but we live with risks that big all the time. If you're an American commuter for example that's the sort of risk you shrug off.

Likewise, Kessler isn't a barrier to leaving, humans won't be leaving because there's nowhere to go. The only habitable planet is this one, and we're already here.

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davidt84 ◴[] No.42198234{3}[source]
GEO is very cramped. It's just a circle, not a sphere.

Edit: I guess I was assuming geostationary. There's a whole sphere of geosynchronous orbits to play with.

Edit2: I was right the first time, GEO (geosynchronous equatoral orbit) / GSO (geosynchronous orbit), apparently. Now my head hurts.

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1. tialaramex ◴[] No.42198712{4}[source]
> GEO is very cramped. It's just a circle, not a sphere.

"cramped" the way that like, Alaska is cramped on account of how everybody has to live on the surface, not evenly distributed through the volume of the planet?

Like yeah, it's "just a circle" but did you check the radius of that circle?

Remember if there's debris, the debris isn't stuck in the circle, but, any time it's not in the circle it's harmless. This has the effect of significantly defusing the problem, so in total it's too low risk to be worth considering.