The first stage is carrying the first prototype 'Fabships' for Besxar, a semiconductor manufacturing company. These microwave-sized devices are designed to produce ultra-pure materials for semiconductors in the vacuum of space. The company has booked 12 Falcon 9 flights to test and refine these "Clipper-class" Fabships. Two of the devices have been integrated into the rocket for the Starlink 10-50 mission and will be returned to Besxar following booster recovery. Our live coverage with commentary from Spaceflight Now's Will Robinson-Smith will start about one hour prior to launch. [the time index is set to skip the first 59:56] Live: SpaceX...