SpaceX delays today’s Falcon 9 launch due to sensor issue, will try again tomorrow

On Monday, SpaceX is slated to do its very first national security mission for the US military — sending a spy satellite into orbit for the National Reconnaissance Office. Dubbed NROL-76, the secretive payload is scheduled to go up on the company’s Falcon 9 rocket early Monday morning from Kennedy Space Center in Cape Canaveral, Florida. After launch, SpaceX will attempt to land the Falcon 9’s first stage — the 14-story high core of the rocket that contains the main engines and most of the fuel — on solid ground back at the Cape.

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