SpaceX postpones classified US military launch

SpaceX on Sunday postponed for 24 hours the launch of a secretive US government payload, known only as NROL-76, due to a "sensor issue" with the rocket, a spokesman said."Out of an abundance of caution we have decided to scrub today's launch," a SpaceX spokesman said, describing the issue as relating to the first stage of the Falcon 9 rocket.The payload for the National Reconnaissance Office, which makes and operates spy satellites for the United States, will be the first military launch for the