‘Unsustainable’: how satellite swarms pose a rising threat to astronomy

It’s been three years since SpaceX, an aerospace company in Hawthorne, California, launched its first batch of Starlink Internet-communication satellites, sparking concern among astronomers about the streaks the satellites leave in photographs of the night sky. Since then, many other Starlinks have launched: more than 2,300 of them now orbit Earth, comprising nearly half of all operational satellites. But accumulating evidence reveals just how much these satellite ‘megaconstellations’ will interfere with astronomical observatories and other skywatchers around the globe. More

(Source: Nature - May 27)