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“Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

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51–60 of 334 posts

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#51
Perhaps we have 100 years to spread consciousness to space before civilisation is devastated by demographic collapse or nuclear war or some horrible virus or islam.

99.9% of species that have existed on earth are already extinct. Climate change happens constantly over long periods. Our CO2 emissions will be background noise on a million year timescale.

Time to ignore the whingers and the NIMBYs and colonize the universe.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#52
post #13

These kinds of caps have for years been a dampener on human flourishing. My observation has been that those in stagnation or decline tend to attach themselves to these desires to hold the status quo. Anti-energy, anti-housing, anti-industry and so on because they've reached a local maxima in their ability to live and have chosen to spend their life in leisure. But there is the rest of the world, and if I'm told that…

As a literal leftist by any reasonable metric, the recent trend towards “I wish it was 1995” and “AI is the worst” and “tech sucks now” from people I agree with on many other points frustrates me to no end. “You guys know we could basically live in a Star Trek style utopia if we get this right, right?” “The DATA cenTERS are STEALING the water and breaking Taleckshual ProPerty LERRS!” Like, I thought we were for pirac…

The problem is people don't see the near future as a Star Trek utopia, they see it going more towards a dystopian landscape with handfuls of extremely wealthy elite dictating how they can live their life.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#54
post #43

Earlier quoted context omitted.

The article doesn’t consider that in a world with a million satellites in orbit, launching space-based telescopes—including into deep space—becomes an order of magnitude cheaper.

Does it? My understanding was that it’s less helpful for anything which isn’t in low-earth orbit because the commercial launch engineers are optimizing for the lucrative satellite business, not larger and higher payloads.

Larger rockets are inherently more efficient, which is why all the commercial providers are moving towards them. And while yes, most of the providers are targeting primarily for LEO, if you have high payload capacity to LEO you can solve your issue of getting anywhere by packing in a kick stage. And cheap third-party kick stages are available and more are in development.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#55
>SpaceX plans to send one million more satellites into orbit, for space-based data centres, ...

I think we should wait to see how the first satellite data centre works out. It seems fairly unlikely that it could be practical. It seems kind of nuts...

>Reflect Orbital, a US start-up, aims to launch a constellation of very large mirror-like satellites to provide sunlight at night, with reflected beams that span at least five kilometres on Earth's surface.

Straight up nuts with no practical value, even if it did work out.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#56
post #13

These kinds of caps have for years been a dampener on human flourishing. My observation has been that those in stagnation or decline tend to attach themselves to these desires to hold the status quo. Anti-energy, anti-housing, anti-industry and so on because they've reached a local maxima in their ability to live and have chosen to spend their life in leisure. But there is the rest of the world, and if I'm told that…

> we will build Sun orbital structures and swarms,

Another episode of arrogant fantasy in the ponyworld.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#57
post #15
post #10

If we can launch 1M satellites, how many telescopes can we launch?

Who is we? Certainly not amateur astronomers who made important discoveries with their telescopes

If the cost to orbit does get low enough as is the assumption in this article, I would be shocked if we didn't start to see amateur space based telescopes.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#58
post #13

These kinds of caps have for years been a dampener on human flourishing. My observation has been that those in stagnation or decline tend to attach themselves to these desires to hold the status quo. Anti-energy, anti-housing, anti-industry and so on because they've reached a local maxima in their ability to live and have chosen to spend their life in leisure. But there is the rest of the world, and if I'm told that…

This is unrealistic, uncharitable, and tribalistic.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#59
Yes okay, good luck with that. The strategic importance to nations is far too high, it just means astronomy will evolve to a thing where it's done from space. But if you want to be the region where you support these ideas and undermine your own political support for national self-interest then that's your choice. Europe is overrun by these professional class types with nice ideas that are misprioritized. It's like a land of people that behave like pets lacking practical self-sufficiency.

Re: “Beyond the limit”: Satellites and mirrors in space pose threat to the night sky

#60

Of course this comes from a European organisation.

I really wanted to downvote this because I hate the constant EU bashing, but I just have to agree.

So we can’t see the stars from Munich anymore? Yes, that’s depressing, but we’re not trying to reduce light smog in Munich right now, are we? Because all the buildings that have been build, all the streets and trains, also make it hard to see the stars.

More light is one of the things progress has always brought, and eventually we will just have to accept that we started building in the sky, too.

We should introduce a global agreement that commercial satellites must fall out of the sky within a few years to reduce debris. It should be an agreeable term since the debris hinders everyone doing business up there. Every nation is going to partially ignore it anyway, for military purposes for example. But that’s a different demand than a cap on the total number of satellites.

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