Space Debris and Kessler Syndrome

The cluster focuses on concerns about space junk, satellite collisions, and the risk of Kessler syndrome from large constellations like Starlink, debating mitigation through low orbits and rapid de-orbiting versus long-term orbital pollution.

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Keywords

MEO US celestrak.com StarLink ISS GEO en.m ASAT AKA wikipedia.org orbit satellites debris orbits leo starlink space syndrome spacex orbital

Sample Comments

modeless Aug 27, 2020 View on HN

There is no issue with controlled and tracked satellites; we could have orders of magnitude more. The real issue is space junk, derelict satellites and collision debris. In high orbits space junk is essentially permanent pollution, which is very worrying. However, in low orbits space junk is guaranteed to fall out of the sky within a few years due to atmospheric drag. So there is no real space junk issue in low orbits, and SpaceX has modified their constellation plan to use lower orbits for this

DarkTree May 10, 2016 View on HN

Very much a problem. [https://en.wikipedia.org/wiki/Kessler_syndrome]

modeless Jun 4, 2020 View on HN

SpaceX moved the satellites to lower orbits, so any broken satellites or debris will fall out of the sky within a few years due to atmospheric drag. And they are specifically designed to burn up completely in reentry. The real concern is in higher orbits where debris would persist for millennia. This is not a concern for Starlink.

tehjoker Dec 27, 2025 View on HN

i thought starlink was using a low orbit that separated it from most other objects and would cause relatively rapid decay of debris. are there other objects in that orbit we should care about?

Moral_ Sep 26, 2019 View on HN

Will this add a bunch of debris to the already crowded near earth space?

PaulHoule Nov 18, 2016 View on HN

Will this cause the Kessler syndrome?

kragen Feb 7, 2020 View on HN

Sounds like you haven't read https://en.wikipedia.org/wiki/Kessler_syndrome

HeadsUpHigh Sep 10, 2018 View on HN

The roadster is not orbiting the Earth. You lack understanding of the topic and thus fall victim to fear mongering by clickbait articles. Right now, with little done to protect from debris the chances of Kessler syndrome actually happening are tiny. Also most of the new constellations that are coming up in the following years will be in LEO where atmospheric drag is enough to get them down and burn in the atmosphere on their own within months of them malfunctioning. The problem is in higher orbi

WJW Nov 9, 2024 View on HN

Yes, because of the https://en.wikipedia.org/wiki/Kessler_syndrome

compressedgas Nov 10, 2022 View on HN

Likely: Kessler syndrome https://en.wikipedia.org/wiki/Kessler_syndrome