SpaceX launch scrubbed in final minute of countdown

SpaceX scrubbed an attempt to launch a commercial Falcon 9 rocket Sunday less than a minute before liftoff, blaming a sensor issue on the vehicle’s first stage and pushing back the company’s first national security mission for the U.S. government at least 24 hours. The Falcon 9 launch director called a hold at T-minus 52 seconds as the countdown ticked toward a planned blastoff from NASA’s Kennedy Space Center in Florida at 7:15 a.m. EDT (1115 GMT) Sunday, immediately ordering the launch team to ready for another try Monday. More

(Source: SpaceFlight Now - Apr 30)