Lon Rains, Northrop Grumman’s communications director, said: “The Zuma payload is a restricted payload. It will be launched into low Earth Orbit.”
Millions streamed the launch online, but the feed dramatically cut out before viewers caught a glimpse of the Zuma craft – leaving some confused.
One Twitter user said: “I was enjoying watching until you cut the feed prior to stage 2 (T-2).”