Science
NASA objects to new megaconstellation, citing risk of “catastrophic collison” – Ars Technica
“This particular region of space tends to produce a large number of conjunctions.”

Enlarge/ Sixty Starlink Internet communication satellites from SpaceX are seen in the night sky over Vladivostok.
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NASA has formally commented (PDF) on a request by a US company to build a megaconstellation of satellites at an altitude of 720km above the Earth’s surface, citing concerns about collisions. This appears to be the first time that NASA has publicly commented on such an application for market access, which is pending before the Federal Communications Commission.
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