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FCC approves giant space mirror as astronomers warn of risks to the night sky
(www.thebrighterside.news)
This is a most excellent place for technology news and articles.
But a chain reaction in low earth orbit is generally short lived, atmospheric drag clears that up. A chain reaction in high earth orbit is exponentially less likely to happen. It's the medium orbits to worry about, luckily they're less popular for now, but as LEO fills up, they'll likely start to be used more.