SpaceX launched its fourth batch of 60 Starlink satellites today, boosting its constellation to a world-record 240 satellites and bringing the company closer to starting up its global broadband internet service.
Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.