Watch live coverage as SpaceX launches a Falcon 9 rocket with 21 second-generation Starlink internet satellites. Liftoff from pad 4E at Vandenberg Space Force Base is scheduled for Thursday, September 12, at 6:45 p.m. PDT (9:45 p.m. EDT, 0145 UTC). The first-stage booster, B1071, making its 18th flight, will land on the drone ship 'Of Course I Still Love You' a little more than eight minutes into the flight.

The Starlink 9-6 mission includes 13 satellites capable of providing direct to cellphone services.

Our live coverage with commentary from Will Robinson-Smith will begin about 30 minutes before launch.

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• Watch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Vandenberg, California ( Download)
• Watch live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Vandenberg, California ( Download)
• Watch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Vandenberg, California ( Download)
• Watch live: SpaceX Falcon 9 rocket Launches 21 Starlink satellites from California ( Download)
• Watch Live: SpaceX Falcon 9 rocket launches 21 Starlink satellites from Vandenberg, California ( Download)
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• Watch live: SpaceX Falcon 9 rocket Launches 21 Starlink satellites from California ( Download)
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• Watch live: SpaceX Falcon 9 rocket launches 20 Starlink satellites from Vandenberg, California ( Download)
• Watch live: SpaceX Falcon 9 rocket launches 20 Starlink satellites from Vandenberg, California ( Download)
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• Watch live: SpaceX Falcon 9 rocket launches 20 Starlink satellites from Vandenberg, California ( Download)
• Watch live: SpaceX Falcon 9 rocket launches 20 Starlink satellites from Vandenberg, California ( Download)
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