The mission, dubbed Starlink 15-8, was SpaceX’s 70th Falcon 9 launch of the year. Lifted off from pad 4 East at 7:20 a.m. PDT (10:20 a.m. EDT, 1420 UTC).

An airport-like viewing tower standing up to 30 stories tall is the centerpiece of SpaceX’s planned rocket refurbishment and operations base proposed for vacant land at NASA’s Kennedy Space Center in Florida.

SpaceX launch crews rolled out the company’s next Falcon 9 rocket to pad 39A at the Kennedy Space Center in Florida, then lifted the two-stage launcher vertical for a hold-down engine firing Thursday in preparation for launch next week with a South Korean-owned commercial communications satellite.