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" ... Satellite megaconstellations. Beginning in 2019, however, things began to change dramatically. The first launches of SpaceX’s new Starlink satellites — the first in a coming series of satellite megaconstellations designed to provide modern global internet coverage — came as an immediate jolt to both the astronomy and the civilian communities. The new satellites were: ... "
" ... Since the dawn of the space age, the night sky has changed in two major ways. The rise of light pollution, made worse by the recent widespread adoption of LED lighting, has restricted pristine, dark skies to a few isolated locations around the globe. Satellites, on the other hand, were only a minor nuisance until recently. Over the past 18 months, the construction of satellite megaconstellations has begun, and the impact has been severe on professional and amateur astronomers alike. Astronomy is facing a crisis, and although some players in the industry are listening, no one has yet met even the basic criteria set forth by astronomers worldwide. Here’s what you need to know. ... "