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SpaceX aces 60th operational Starlink launch after string of scrubs

(Richard Angle)

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SpaceX has completed its 60th operational Starlink satellite launch after a rare string of scrubs.

Flying for the 6th time just 66 days after its 5th launch, Falcon 9 booster B1067 lifted off with 54 Starlink satellites on SpaceX’s Starlink 4-34 mission at 8:18 pm EDT, Sunday, September 18th. Five days prior, after unknown issues triggered a delay from a planned September 11th launch attempt, SpaceX attempted to launch the mission for the first time on September 13th.

About an hour before liftoff, lightning conditions forced the company to call off the attempt. On September 14th, also about an hour before liftoff, weather forced SpaceX to call off the second attempt. On September 15th, the third attempt was aborted (by weather) just 29 seconds before liftoff, followed by a fourth weather-related scrub about a minute before liftoff on September 16th. Only after a fifth attempt on September 17th was preempted by a delay to September 18th did SpaceX finally find a gap between Florida’s summer weather.

With dozens of Starlink launches beginning to blur together and SpaceX’s Falcon 9 continuing a relentless and potentially record-breaking streak of successes at a pace that could soon make it the fastest launching rocket in history, it’s hard to be surprised that Starlink 4-34 was completed without issue. Falcon 9 B1067 ascended under power for about three minutes, sent the rest of the rocket on the way to orbit, coasted into space, and returned to Earth with SpaceX’s 68th consecutively successful booster landing.

Falcon 9’s underappreciated upper stage continued into an orbit around 300 kilometers (~190 mi) up, spun itself up end over end, and deployed a 16.7-ton (~36,900 lb) stack of 54 Starlink V1.5 satellites all at once. Following the quick deployment, the rocket’s pair of reusable fairing halves were likely still 10 or 20 minutes away from touching down on the Atlantic Ocean under their GPS-guided parafoils, where they will eventually be scooped out of the water for future flights.

Starlink 4-34 was SpaceX’s 42nd launch of 2022, maintaining an average of one launch every 6.2 days since the year began. It leaves more than 3000 working Starlink satellites in Earth orbit, likely meaning that a majority of all working satellites are owned and operated by SpaceX less than three full years after the company began operational launches.

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Up next, Next Spaceflight and Spaceflight Now report that SpaceX has two more Starlink launches (4-35 and 4-36) tentatively scheduled before the end of September. As of September 15th, both reported that those missions were working towards launches on September 19th and September 26th – nothing unusual for SpaceX in 2022.

What was unusual, however, was both unofficial manifests’ agreement that SpaceX intended to use the same pad – Cape Canaveral Space Force Station’s LC-40 – to launch Starlink 4-34, 4-35, and 4-36. Even assuming that those schedules were predicated upon Starlink 4-34 launching on September 13th, before all of its weather delays, SpaceX would have had to break LC-40’s 7.7-day turnaround record by around ~25% and complete a second launch just seven days after that.

Starlink 4-34’s delays have thrown that plan into question, but the fact that SpaceX thought it was possible in the first place suggests that the company has plans to squeeze even more performance out of LC-40 – already its most important pad from the perspective of launch cadence. Launch photographer Ben Cooper now reports that Starlink 4-36 could launch in late September or October. If it slips into October, SpaceX has a rapid-fire pair of customer satellite launches scheduled on October 5th and 13th that will probably take precedent over any internal Starlink mission.

With only 16 days left before LC-40’s next commercial launch and NASA’s Crew-5 launch taking over SpaceX’s other East Coast pad until October 3rd, SpaceX would have to launch Starlink 4-35 and 4-36 just four or five days apart (and one just 4-5 days after Starlink 4-34) to avoid delaying one of the Starlink missions well into October, avoid unnecessarily delaying commercial launches for paying customers, and ensure that those customers don’t have abruptly agree to be commercial guinea pigs for extra quick LC-40 turnarounds.

Starlink 4-35 is now tentatively scheduled for September 23rd, making a Starlink 4-36 delay more likely but not fully ruling out a launch attempt before the end of the month.

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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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