Vast satellite constellations are alarming astronomers

economist11 Dilihat

ON MAY 24TH2019 a Falcon 9 rocket built by SpaceX launched 60 communication satellites into a low orbit around the Earth. That evening they appeared as a string of sunlit dots moving across the sky, many of them as bright as the brightest stars, a source of passing wonder and mystery to casual observers—and a portent of doom to astronomers.

This article appeared in the International section of the print edition under the headline “Goodbye darkness, my old friend”

Discover stories from this section and more in the list of contents

Sweden is banning OnlyFans content as the lines around sex work blur

It is meekly welcoming the new sheriff’s vigilante justice

The answer matters more than you think

Donald Trump prefers deals to regime change

After decades of rising secularism, Christianity is holding its ground—and gaining among the young