Next SpaceX Starship High Altitude Test Launch Coming Very Soon Hey all you space exploration fans: SpaceX's Starship prototype SN11 is on the launch pad at Boca Chica Beach in southern Texas, undergoing work on engines and other components, getting ready for the ship's high altitude test flight which may take place this Sunday, March 21, 2021. As always, the flight will be contingent on weather, the readiness of the raptor engines, the successful "static fire" testing of the powerful Raptor engines, as well as all the other components of the craft. Some sources report that Sunday will be the earliest opportunity in the schedule for the flight, which will top-out at about 10km, or 33,000 feet, followed by the "belly flop" maneuver and return to the pad for a (hopefully) upright and intact landing.