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SpaceX hit by back to back Falcon 9 and Starship rocket delays

Three separate SpaceX missions have suffered significant delays in just the last few days. (Richard Angle/Richard Angle/NASASpaceflight - bocachicagal)

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SpaceX has been hit by multiple back-to-back Falcon 9 launch and Starship test delays in a period of a few days, ending the company’s second attempt at a potentially record-breaking month.

Originally scheduled to launch no earlier than (NET) June 22nd, give or take, SpaceX’s own Starlink-9 satellite mission kicked off the misfortune and has suffered the most. After SpaceX announced an indefinite delay on July 11th to allow for “more time for checkouts”, Starlink-9 is not expected to launch for several more days at best. On July 13th, SpaceX announced that another summer mission targeting a NET July 14th launch had also been delayed indefinitely to allow teams to inspect the Falcon 9 rocket’s upper stage and potentially replace hardware.

Those two delays have had follow-on effects on subsequent launches planned in late July and early August but the actual end-results will be hard to determine until SpaceX has settled on alternate launch dates for Starlink-9 and ANASIS II. Meanwhile, all throughout those orbital-class launch delays, the first Raptor engine test with SpaceX’s fifth full-scale Starship has been consistently delayed and is now expected no earlier than this week (roughly July 15-19). The swath of delays have been so pronounced and oddly simultaneous that CEO Elon Musk even weighed in on Twitter yesterday, shedding a bit of light on the situation.

Three separate SpaceX missions have suffered significant delays in just the last few days. (NASASpaceflight – bocachicagal)

On July 13th, in response to a Spaceflight Now article detailing a few of those setbacks, Musk revealed that SpaceX is “being extra paranoid” – presumably the cause of most of the recent delays. Per Musk, “maximizing [the] probability of [a] successful launch is paramount” to SpaceX – not exactly a shocking revelation but still good to hear. Over the last six or so weeks, SpaceX has attempted to substantially ramp its launch cadence, targeting an unprecedented four launches in June 2020.

Delays reared their head, however, beginning with Starlink-9 around the last week of the month. SpaceX simply carried its four-launch-month ambitions into July, although that goal has already been pushed out of reach before the first launch of the month. As of July 1st, SpaceX has completed 11 launches in 2020 and has at least another 16 within tentative launch targets in the second half of the year. To complete all 16, the company would have to average almost three launches per month for the rest of 2020, a cadence it’s only managed to sustain for two or so months at a time.

Before ANASIS II’s indefinite delay was announced, Falcon 9 booster B1058 was on track to smash the world record for the fastest turnaround of an orbital class rocket, beating NASA’s Space Shuttle by ~20% (9 days). Somewhat ironically, some concerns surrounding the unflown upper stage have triggered said delay, while the record-breaking B1058 booster was apparently ready for launch. Like Starlink-9, ANASIS II’s delay is indefinite, meaning that it could last just a few days or stretch weeks into the future. If SpaceX manages to turn around for a second launch attempt before July 26th, though, B1058 still has a shot at becoming the world’s most rapidly reusable orbital-class rocket.

Meanwhile, Starship SN5 has been slowly wading through delay after delay as SpaceX’s South Texas team prepares the rocket for its first wet dress rehearsals (WDRs) with live propellant and its first Raptor engine ignition tests (i.e. static fires). As few as a few days after that test is complete, SpaceX wants to launch the massive steel rocket on the first full-scale hop test, potentially reaching 150m (500 ft) or higher before attempting to land nearby.

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Prior to numerous delays, Starship SN5’s first static fire was expected to occur as early as late June or early July. As of now, SpaceX appears to be targeting the first wet dress rehearsal (WDR) with live methane and oxygen propellant (a precursor to any flight test) no earlier than (NET) July 15th to test SN5’s “fuel pump.” If successful, SpaceX would presumably move into static fire operations within a few days, followed another few days later by the first hop test attempt if the static fire was also successful.

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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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