MIAMI, United States (AFP) — SpaceX on Sunday blasted off a secretive US government payload known as Zuma, a mission whose nature — and the agency behind it — remains a mystery. “Three, two, one, ignition and liftoff,” said a SpaceX commentator as the Falcon 9 rocket launched under cover of darkness from Cape Canaveral, Florida, at 8:00 pm (0100 GMT Monday). The launch was initially supposed to take place in November but was postponed […]