SpaceX Completes Starship Flight 14 Launch Rehearsal Ahead of 28 September Orbital Attempt

A rocket that stands roughly 124 metres tall is edging closer to its most ambitious test yet. SpaceX announced on 24 September 2026 that it had completed a wet dress rehearsal for Starship Flight 14 at its Starbase facility in south Texas — the last major ground test before a planned orbital launch attempt.

The rehearsal involved fully loading propellants into the vehicle and running through launch-day countdown procedures from start to finish, stopping short of engine ignition. It’s the kind of end-to-end dress rehearsal that lets engineers stress-test the launch pad, ground systems, and the vehicle itself under real conditions — without the risk of actually lighting the engines.

What the Rehearsal Actually Tested

The vehicle combination for Flight 14 is Super Heavy Booster 21 paired with Ship 41, the upper-stage spacecraft. Booster 21 reportedly completed a 33-engine static-fire test earlier in September 2026, so this week’s wet dress rehearsal was the next logical step in the pre-launch sequence.

SpaceX posted confirmation of the rehearsal’s completion on X, describing it as a check of the vehicle, launch pad, and countdown procedures. The company’s post framed it as progress towards the planned launch date — but completing the rehearsal does not mean a launch licence has been granted, and it doesn’t guarantee the 28 September target holds.

That date had already slipped once. Flight 14 was previously associated with a 22 September 2026 target before being pushed back to the 28th. Launch schedules for complex test vehicles are rarely fixed, and the FAA’s approval remains an outstanding condition.

The Mission Itself

Flight 14 would be Starship’s first attempt to reach orbit. That’s a notable step up from previous flights, which tested vehicle performance, stage separation, and the booster catch system without completing a full orbital profile.

The planned mission, according to specialist space publications, would see Ship 41 target close to six orbits at an altitude of around 275 kilometres. The Super Heavy booster would attempt a boostback burn and a simulated catch attempt at the launch tower after separation. If the mission profile holds, it would be the most complete end-to-end test of the Starship system to date.

Meanwhile, the launch window reportedly opens at 7:15 am Central Daylight Time on 28 September — that’s 1:15 pm UK time — and lasts 75 minutes.

But it’s worth keeping expectations measured. This is a test flight. Completing a wet dress rehearsal confirms the ground systems and vehicle are ready for the next step in the process. It doesn’t confirm the rocket will fly successfully, or even that it will fly on the target date.

The Regulatory Piece

The FAA’s launch-safety approval is a separate matter from the technical rehearsal, and its status couldn’t be independently confirmed from official FAA sources at the time of writing. The Federal Communications Commission’s communications authorisation is also a distinct regulatory requirement. Both need to be in place before the vehicle can lift off from Pad 2 at Starbase.

Previous Starship flights have seen regulatory timelines shift, sometimes at short notice. SpaceX has navigated that process repeatedly, but it remains a real variable for the 28 September target.

Elon Musk, SpaceX’s chief executive, has spoken publicly about the ambition behind Starship’s development. In earlier statements about the programme’s goals, he described the vehicle as central to making humanity “multiplanetary.” Flight 14’s orbital attempt would be the most concrete step yet towards that longer-term aim — though the immediate priority is simply completing a successful test flight.

Starbase and the Local Picture

Launches from Starbase draw attention beyond the space community. The facility sits on the southern tip of Texas, near Boca Chica, and local communities there are the ones most directly affected by road closures, noise, and any evacuation arrangements that come with a launch attempt. Environmental groups have previously raised concerns about the impact of Starship launches on the surrounding coastal area, though no new Flight 14-specific assessment was independently verified in the available reporting.

None of that affects Kent directly. But the broader story — a fully reusable rocket system attempting its first orbital mission — is one that has effect on how satellite deployment, commercial space access, and eventually human spaceflight develop over the coming decade.

What This Means for Kent Residents

There’s no direct impact on Kent from the Flight 14 rehearsal or the planned launch. If you want to watch, SpaceX should broadcast the attempt online, and the reported 1:15 pm UK start to the launch window makes it a reasonable lunchtime watch on 28 September — assuming the date holds and approval comes through. More broadly, Starship’s development matters to UK consumers and businesses because cheaper, higher-capacity rocket launches underpin the expansion of satellite internet services like Starlink, which a growing number of rural Kent households already rely on for broadband connectivity.