In recent months, people have reported seeing a parade of star-like points passing across the night sky. The formation is not extraterrestrial, or even astrophysical in origin, but is in fact a line of satellites, recently launched by SpaceX, that will eventually be joined by many more to form Starlink, a “megaconstellation” that will wrap around the Earth as a global network designed to beam high-speed internet to users anywhere in the world. Starlink is among a handful of global satellite networks currently in development (though not without controversy, due…
