Hail to the chief

NASA Administrator Jared Isaacman greets astronauts Victor Glover and Christina Koch on the USS John P. Murtha. (NASA Photo / Bill Ingalls)

By Alan Boyle

Mastermind of Cosmic Log, contributor to GeekWire and Universe Today, author of "The Case for Pluto: How a Little Planet Made a Big Difference," past president of the Council for the Advancement of Science Writing.

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