Three years after the inaugural hop of the Starship prototype, SpaceX is preparing to push the vehicle into a true Earth orbit. The launch is slated for Monday, Sept. 28, at 7:15 a.m. local time (12:15 GMT) from Starbase in Texas. The mission, labeled Flight 14, marks the 14th test of the system and the first where the upper stage is expected to reach orbital velocity before re-entering the atmosphere.
Countdown to the 14th Starship flight
The massive Super Heavy booster, identified as B21, was rolled out to Pad 2 late Sunday night and mated with the upper stage S41 during early Monday operations. Standing 236 feet (72 m) tall with a 9-meter diameter, the booster dwarfs a Falcon 9, whose diameter is only 3.7 m. A single down-center pipe, as wide as an entire Falcon 9, carries methane down to the base-mounted Raptor engines. No official wet-dress rehearsal has been announced, but the stack is now fully assembled and awaiting the Federal Aviation Administration’s final go-ahead.
Preparation at Starbase
Starbase’s launch pad will see the booster separate a few minutes after liftoff, with the empty Super Heavy expected to splash down in the Gulf of Mexico. Unlike earlier attempts, SpaceX does not plan to recover the booster with its colossal mechanical arms; the vehicle will be allowed to sink. The upper stage will continue its burn roughly two and a half minutes after launch, then perform a second engine firing to accelerate to the required orbital speed.
Mission profile: orbit, speed, and payload
To achieve a circular orbit at an altitude of about 275 km (171 mi), the combined vehicle must reach roughly 28,000 km/h (17,500 mph). Once the Starship reaches that velocity, it will deploy 26 next-generation Starlink satellites, each intended to add about 1 Tbps of capacity to the constellation. The satellites will unfurl their antennas and solar arrays, establish radio-frequency and laser links with the existing network, and then raise their own orbits using onboard thrusters.
Key performance targets
The flight is expected to last around ten hours, during which the spacecraft will circle the planet six times. About nine hours after launch, the vehicle will begin its de-orbit burn, guiding the descent module toward a splashdown in the Pacific Ocean off Chile. If all systems operate nominally, the mission will demonstrate a full orbital insertion, satellite deployment, and controlled re-entry – milestones that Elon Musk has described as essential steps toward a fully reusable system.
What success could mean for SpaceX and beyond
A successful orbital test would open the door to in-orbit refuelling, a capability Musk views as critical for lunar and Martian missions. Reusability of both stages would dramatically cut launch costs, bolstering SpaceX’s dominance in the commercial launch market and supporting NASA’s Artemis program, which has already contracted Starship-derived landers for future moon flights. Kathleen Curlee, senior analyst at Georgetown University’s Center for Security and Emerging Technology, emphasized that “the hardest part” of the flight is the second burn, which involves “more forces and more complex calculations.” Achieving those calculations would validate the engineering path toward deep-space missions.
Even if the test ends with a controlled failure, the data collected will inform the next iteration of the vehicle. SpaceX has scheduled three additional launches in the same week, including a crewed mission to the International Space Station, underscoring the company’s aggressive timetable. As investors and the public watch, the outcome of Flight 14 will likely shape perceptions of SpaceX’s ability to deliver on its ambitious interplanetary roadmap.
