Live from launch pad 39A (members only)

The mission will be SpaceX’s 470th Falcon 9 rocket launch to date. Liftoff from pad 40 at Cape Canaveral Space Force Station is targeted at 9:17 p.m. EDT (0117 UTC).

Taking aim on the International Space Station, nine kerosene-burning rocket engines powered a SpaceX Falcon 9 launcher into a clear sky over Florida’s Space Coast on Friday night to begin the final flight of the first version of the company’s Dragon cargo ship.

When the countdown hit zero last Friday and the engines powering a previously flown Falcon 9 first stage roared to life for takeoff, the four astronauts strapped into a SpaceX Crew Dragon some 21 stories up started laughing.