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Elon Musk says SpaceX might refly Starship after historic landing

Starship SN15 is still standing. (SPadre - @SpacePadreIsle)

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Update: CEO Elon Musk says that SpaceX “might try to refly SN15 soon” after it became the first Starship to ace a high-altitude launch and survive the landing. In other words, SpaceX might be about to kick off what’s bound to be a long and fruitful future of Starship reusability.

Less than six months after high-altitude flight testing began, SpaceX has successfully landed a full-size Starship prototype in one piece, giving the company its first real opportunity to inspect a flown vehicle with flaps, a nose, and three Raptor engines.

That spectacular success will simultaneously give SpaceX a wealth of data from any onboard cameras and data recorders, as well as the physical condition of Starship itself – including three Raptor engines with several minutes of flight time. While SpaceX likely already managed to determine a great deal from over-the-air telemetry and wreckage taken from Starships SN8 through SN11, it now has a virtually unharmed, full-scale, full-fidelity prototype to truly compare and contrast with more theoretical engineering and flight performance models.

Perhaps most importantly, though, SN15’s success also raises the question: what’s next for SpaceX and its Starship program?

The reality is that things could go any number of directions depending on Starship SN15’s condition and just how successful SpaceX determines the flight really was. If Starship SN15 and its tanks, flaps, and Raptors are all in impeccable condition, it’s not impossible to imagine that SpaceX could do what it did after Starship SN8’s near-total success and scrap Starship prototypes SN17, SN18, and SN19 before work really begins. While unlikely, SN15 could even fly a second time in that scenario.

For all intents and purposes, Starship SN16 is complete. (NASASpaceflight – bocachicagal)

Starship SN16 is already more or less complete could easily be ready to roll to the launch pad within the next week. Odds are good that SpaceX will use SN16 to (hopefully) replicate Starship SN15’s spectacular success and prove beyond a shadow of a doubt that the vehicle’s current design has fixed the issues that doomed SN8 through SN11. With SpaceX’s Starship program, though, just about anything is possible – especially at a point that CEO Elon Musk appears to be seriously considering a giant tower with arms as a replacement for landing legs.

Meanwhile, Musk himself confirmed that SpaceX is working towards a goal of launching Starship into orbit for the first time by July 2021. Beginning with Starship SN20, those initial orbital flight tests will use Starship prototypes with still more upgrades beyond the “hundreds of improvements” present on SN15. It’s unclear how significant the upgrades needed to move from SN15’s design to an orbit-capable Starship are but at minimum, SpaceX will need to outfit orbital ships with a full heat shield and three new vacuum-optimized Raptors on top of the three sea-level engines already flown on SN8 through SN15.

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Musk has implied that recovering a Starship prototype from orbit could take several failed attempts before the first success. Along those lines, SpaceX has its work cut out for it given that Starship will be the heaviest orbital spacecraft ever launched by a large margin. Unlike the ~100 metric ton (220,000 lb) Space Shuttle orbiter, though, SpaceX won’t be gambling the lives of astronauts on Starship’s initial orbital flight tests, leaving far more room for uncertainty and risk-taking.

Beyond Starship itself, SpaceX has yet to complete or test a flightworthy Super Heavy booster prototype and the company’s orbital-class Starship launch facilities are far from complete. Many parts of Super Heavy boosters BN2 and BN3 have been completed and are waiting for integration to begin and SpaceX has made a huge amount of progress on said orbital launch site over the last six months, but months of work almost certainly remain before either crucial component will be ready for orbital launch attempts.

For now, we’ll just have to wait and see what happens to Starship SN15 and SN16.

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady

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Credit: SpaceX

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:

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.

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Tesla Assisted Driving expands to tenth EU country

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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’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.

Tesla starts showing how FSD will change lives in Europe

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.

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Tesla expands Robotaxi geofence in Houston with an ode to SpaceX merger

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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.

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.

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