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SpaceX Starship factory aiming to build five megarockets in 2023
CEO Elon Musk says that SpaceX’s South Texas Starship aims to build up to five of the two-stage megarockets in 2023.
SpaceX’s Boca Chica, Texas hardware endeavors began in an empty field in late 2018, kicking off Starhopper testing in 2019. In late 2019 and early 2020, the company began building the bones of the factory that exists today, relying heavily on several giant tents (“sprung structures”) similar to those used by Tesla. SpaceX has already begun the process of replacing those tents with larger, permanent buildings, but two of the original tents continue to host crucial parts of the Starship manufacturing process.
In terms of useful output, that manufacturing slowed down a bit in 2022. That slowdown can likely be partially explained by the need to move equipment and processes into the first finished section of Starfactory. But in general, SpaceX was simply focused on finishing and testing Starship S24 and Super Heavy B7 – both stages of the latest vehicle meant to attempt Starship’s first orbital launch.
Only by late 2022 did Ship 24 more or less complete proof testing, and Booster 7 is still several major tests away from solidifying full confidence in its design. SpaceX has only conducted limited testing with fully-stacked Starships, further reducing the amount of confidence the company can have in the assembled rocket. Lacking the data needed to know with certainty whether the tweaked designs of Starship and Super Heavy are good enough for several orbital test flights, it’s thus unsurprising that SpaceX only produced a handful of usable ships and boosters in 2022.
The update that's rolling out to the fleet makes full use of the front and rear steering travel to minimize turning circle. In this case a reduction of 1.6 feet just over the air— Wes (@wmorrill3) April 16, 2024
But if CEO Elon Musk’s forecast is correct, the company has plans to increase Starbase’s useful output in 2023. According to Musk, SpaceX aims to build “about five full stacks” this year, translating to five flightworthy Starships and five Super Heavy boosters.
In 2022, SpaceX finished Booster 7 and built Booster 8, Booster 9, and most of Booster 10. Booster 8 was almost immediately relegated to the retirement yard. Booster 9, featuring some significant design changes, completed a limited amount of proof testing and returned to the factory in early January – likely for Raptor engine installation. The fate of Booster 10 is unclear, but it stands as a prime example of how fast SpaceX can actually build massive Starship hardware when conditions are right. SpaceX began stacking B10 in late October 2022 and the vehicle is just two stacks away from full height three months later.
In the same period, SpaceX finished and immediately retired Starship S22, finished and began testing Ship 24, finished and began testing Ship 25, and finished stacking Ship 26. Booster 9’s upgrades partially insulate it from the most disappointing possible scenario, retirement before flight. Even if Booster 7 fails during prelaunch testing or its launch attempt, revealing major design flaws, it’s possible that Booster 9’s changes have already addressed those weaknesses, allowing it to continue the flight test campaign. Ship 25’s fate is even more dependent on the fate of Ship 24.
In 2022, SpaceX ultimately produced two “full stacks,” with a third (S26/B10) likely to be completed – albeit with a less certain fate – in early 2023. Delivering five full stacks this year – meaning five ships and five boosters that make it far enough to be paired with another and fully stacked – would be a major improvement. However, as was the case in 2022, higher-volume production will remain a risky proposition until the designs of the vehicles being built have been fully qualified.
Given how long it’s taken SpaceX to partially qualify Super Heavy Booster 7, it appears that the largest source of uncertainty will remain for at least another month or two, if not well into mid-2023. Starship production has many uncertainties of its own, and all of them are complicated by not knowing if a Super Heavy booster will be available to launch each new ship in a timely fashion.
Ultimately, an entirely different constraint means that “five full stacks” may be all SpaceX needs to build for the next 12+ months. After a long and painful process, the FAA completed an environmental review of SpaceX’s Starbase, Texas facilities, permitting a maximum of five orbital (full-stack) Starship launches per year. Starship’s FAA orbital launch license, which has yet to be granted, could be even more restrictive. A second Starship pad under construction in Florida is unlikely to be cleared for orbital launches until Starship has proven itself to be moderately safe in South Texas, which could easily take 12-18 months, if not longer.
Combined with the fact that no super-heavy-lift rocket in history has flown five times in its first year of launch activity, a trend Starship seems unlikely to break, SpaceX could practically halt production entirely in 2023 and still have a full year of testing ahead of it while only using Ships 24-26 and Boosters 7, 9, and 10. Unintuitively, that bodes well for a busy 2023 of Starship test flights, as much of the hardware required for three flight tests is already close to completion or almost ready to begin preflight testing.
SpaceX’s Raptor engine family has steadily increased sea-level thrust while simultaneously reducing mass, turning iterative engineering gains into substantially higher performance for the Super Heavy booster. CEO Elon Musk shed more light on how powerful Raptor 4 will be, and it’s pretty crazy.
Raptor 1 delivered 185 metric tons of thrust at roughly 2,080 kilograms, while Raptor 2 raised that to 230 tons while cutting mass to about 1,630 kilograms. SpaceX data for Raptor 3 lists a target of 280 tons at 1,525 kilograms (with further reductions in associated vehicle hardware), while operational flight ratings have been cited near 250 tons.
This morning, Elon Musk stated that Raptor 4 is expected to reach 300 tons of sea-level thrust at roughly the same mass as Raptor 3. Across these versions, thrust has risen by more than 60 percent from the first engines while engine mass has fallen, producing a sharp improvement in thrust-to-weight ratio. This is a true testament to how great SpaceX engineering has been:
🚀 Elon says Raptor 4 will make 300 tons of thrust at sea level at roughly the same mass as Raptor 3.
How far Raptor has come:
Raptor 1: 185 tf, 2,080 kg
Raptor 2: 230 tf, 1,630 kg
Raptor 3: 250 tf, 1,525 kg
Raptor 4: 300 tf33 on Super Heavy = ~9,900 tf, nearly 3x Saturn V https://t.co/HQDswZhyvL
— TESLARATI (@Teslarati) October 26, 2026
With 33 engines on SuperHeavy, the jump from earlier versions to a 300-ton Raptor 4 would produce roughly 9,900 metric tons of total liftoff thrust, nearly three times the Saturn V’s approximately 3,400 metric tons from its five F-1 engines.
This is not just a larger number on a data sheet, either, as sea-level thrust is the force available the moment the vehicle leaves the pad. This is when it is heaviest and still deep in Earth’s gravity well and dense atmosphere.
Higher levels of sea-level thrust directly improves the initial thrust-to-weight ratio of the full stack. A higher ratio produces faster acceleration off the pad, which shortens the time the rocket has to spend fighting gravity, and gravity losses during the first minute or two of the flight are a major drain on total available delta-v. Every second shaved off of that early climb preserves more propellant energy for reaching orbital velocity or for carrying extra payload.
Because Super Heavy’s engine count is constrained by vehicle diameter and packing density, increasing thrust per engine is the most straightforward way to raise total liftoff performance without redesigning the booster structure or design.
The same-mass target for Raptor 4 is equally important. Holding engine mass roughly constant while raising thrust improves the engine’s own thrust-to-weight ratio and reduces the structural and propellant mass fraction that must be carried solely to support the engines.
Earlier Raptor iterations also simplified or eliminated extensive vehicle-side hardware such as heat shields. These gains compound: more force for less installed mass leaves additional capacity for propellant, payload, or operational margins such as engine-out capability.
For Starship’s architecture, the practical effects are large. Greater liftoff thrust supports heavier vehicles, larger propellant loads, and higher payloads to low Earth orbit, figures SpaceX has targeted in the 100-plus-ton reusable range. That capacity underpins orbital refueling, lunar missions, and eventual Mars cargo and crew flights.
Continued growth in sea-level thrust therefore tightens the gap between theoretical rocket performance and the high flight rates and reusability needed to make large-scale space transport practical.
Tesla has expanded its Tesla Assisted Driving (TAD) suite to its tenth European country, as Latvia joined a growing list of European Union member states authorizing the company’s advanced driver assistance technology.
Tesla Europe announced this morning that the system is now approved in Latvia, with a software rollout to begin soon.
The approval and rollout follow recognition of a provisional European type approval originally granted by the Netherlands’ RDW authority on April 10.
🚨 Latvia has just received approval for Tesla Full Self-Driving (Supervised)
This is the 10th country in the EU to gain approval:
1. Netherlands — 10 April 2026 (original RDW approval)
2. Lithuania — 20 May 2026
3. Estonia — 29 May 2026
4. Denmark — 9 June 2026
5. Belgium — 10 June 2026
6. Slovenia — 7 September 2026
7. Czechia — 21 September 2026
8. Croatia — 29 September 2026
9. Slovakia — 16 October 2026— TESLARATI (@Teslarati) October 26, 2026
Latvia’s Road Traffic Safety Directorate (CSDD) evaluated the Dutch documentation, coordinated with the other national authorities, and reviewed updates from Tesla. These included tightened limits on speed offsets, automatic resets of any manual speed adjustments after each trip, and stronger driver monitoring.
In Europe, the feature is marketed as Tesla Assisted Driving after a recent rule change that labeled the name “Full Self-Driving” as misleading.
The system remains an SAE Level 2 driver assistance tool, not unsupervised autonomy. It can control speed, steering, braking, lane changes, and intersections while following a navigation route. Drivers need not keep their hands on the wheel at all times, yet they must continuously monitor the road and be prepared to intervene immediately.
The sequence of EU recognitions began with the Netherlands in April and continued through Lithuania, Estonia, Denmark, Belgium, Slovenia, Czechia, Croatia, and Slovakia. Most have relied on mutual recognition of the single Dutch provisional approval rather than independent national testing.
These national clearances do not yet constitute bloc-wide authorization. An EU-wide decision requires a qualified majority in the Technical Committee on Motor Vehicles: at least 15 of 27 member states representing 65 percent of the EU population. Larger markets, like Germany, France, and Italy, remain under review, and a vote is expected this December.
However, for Latvian Tesla owners with compatible vehicles and software, the imminent rollout expands access to the supervised system while underscoring that attentive human oversight remains essential.
Tesla expanded its Robotaxi geofence in Houston, Texas, today, enlarging the service area and drawing a new rocket-shaped boundary across the city’s northwestern and central parts.
Although CEO Elon Musk said it was just a coincidence, the expansion seems to be an ode to SpaceX and its potential merger with Tesla.
🚨 Tesla has just expanded its Robotaxi geofence in Houston
It looks a lot like a rocket — we all remember the shape in Austin 🤣 https://t.co/cFOPEuiJ4u
— TESLARATI (@Teslarati) October 26, 2026
The official Tesla Robotaxi account announced the change with the lines “Houston, we have liftoff” and “Bigger service area now live,” pairing them with a map overlay.
The prior white geofence, roughly 25 square miles covering Jersey Village, Harvest Bend, and the Willowbrook corridor along U.S. 290 and State Highway 249, now sits inside a larger blue zone that stretches southeast toward Bellair and closer to central Houston.
Houston’s Robotaxi service launched on April 18, 2026, the same day as Dallas, as Tesla’s first unsupervised public expansion beyond Austin. From the start, the vehicles were Model Ys running without anyone in the front seats, booked through the dedicated Tesla Robotaxi app and open to the public inside the geofence.
Trackers measured the initial zone at about 25 square miles; by late September it had not grown substantially. Community and registry data indicated a modest local fleet of unsupervised Model Ys, while dozens to nearly 200 Cybercabs, the purpose-built, steering-wheel-free two-seaters, have been spotted staging and testing in Houston lots, though public Cybercab rides remain limited to Austin for now.
Across the broader Robotaxi program, Tesla began public Robotaxi rides in Austin in June 2025, as a small geofence and vehicles with safety monitors became available for a ride-hailing service. Later on, Tesla removed the monitors and steadily expanded the service area until it covered most of the Austin metro area.
Unsupervised Robotaxi services now run in six cities: Austin, Dallas, Houston, Miami, Orlando, and Tampa. Cumulative driverless miles reported by the company have reached several million. The Cybercab entered public service in Austin in early September 2026 and has scaled rapidly there. The company has also said that Dallas is next for Cybercab rides in November, with further cities and 24/7 hours targeted by year-end, plus fleet-operator sales of the vehicle.
Waymo also operates a fully driverless service in Houston, which has been open to the public since August of this year.
The Houston expansion continues Tesla’s pattern of starting with tightly controlled validation zones before widening coverage as real-world data accumulates, while the rocket motif on the map underscores the company’s habit of injecting visual flair into its autonomy rollout.
Riders inside the new boundary can request unsupervised Model Y trips in the Robotaxi app; exact operating hours and further Cybercab availability remain subject to app updates and company statements.
How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady
Tesla Assisted Driving expands to tenth EU country
