300 Drones Illuminate the Sky to Honor Health Care Workers

WIRED: Last Tuesday, at 10 pm local time, medical workers and patients at the Netherlands’ Erasmus MC hospital—currently the epicenter of the country’s Covid-19 response—flocked to the windows. Outside, above Rotterdam’s inky black Nieuwe Maas river, a swarm of mysterious floating lights were rising in gentle flight. Shimmering, they swirled into a mass both organic and out of this world, visible not only to the people inside the hospital but to many of the city’s inhabitants who, like so many around the world, are confined to home.