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grvbcktoday at 8:18 PM7 repliesview on HN

From a technical standpoint: amazing achievement, and the tech nerd in me is in awe. But it feels like a lot of people don't understand (or care?) how much these companies are polluting the space.

Before the "new wave", in 2010-2015 or so, Earth had around 1500 active satellites in orbit, and another 2,000-2,500 defunct ones.

Starlink now has almost 9,500 satellites in orbit, has approvals for 12,000 and long-term plans for up to 42,000. Blue Origin has added 5,500 to that. Amazon plans for 3,000. China has two megaconstellations under construction, for a total of 26,000, and has filed for even larger systems, up to 200,000 satellites.

We might be the last generation that is able to watch the stars.


Replies

Aurornistoday at 8:55 PM

> We might be the last generation that is able to watch the stars.

I'm not convinced this is a major issue, but I'd like to hear arguments for why it is.

Correct me if I'm wrong, but aren't LEO satellites only going to reflect light from the sun when they're at low angles near sunrise and sunset? For night time stargazing, they're going to be in Earth's shadow, too.

The amount of light they reflect back is also small. They can be seen if you look closely at just the right time, but I don't understand how this is supposed to be so much light that it starts raising the overall background light level considerably. The satellites are small and can only reflect so much.

Is it just annoyance that they're up there and showing up in photos?

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leetharristoday at 8:54 PM

"Polluting" is a very charged term. These satellites provide immense value. So far, there is no evidence these will stop us from watching the stars.

grvbcktoday at 8:20 PM

(Also, for a frame of reference as to how large these numbers are: the entire gps network operates on 31 satellites.)

quaintdevtoday at 8:37 PM

I wonder if there's a limit to space junk beyond which leaving the Earth in a space shuttle becomes impossible.

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stefan_today at 8:30 PM

Is it a lot? It's a bit like you are telling me there are gonna be 250000 cars on a planet larger than Earth.

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direwolf20today at 8:28 PM

How many causes Kessler syndrome?

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gogascatoday at 8:36 PM

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