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SpaceX Super Heavy booster reaches full height as Elon Musk talks orbit

Super Heavy booster B3 reached its full height on June 29th. (NASASpaceflight - bocachicagal)

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Just a few days after CEO Elon Musk said that SpaceX’s first true Super Heavy prototype was “almost done,” the booster has been stacked to its full height.

Standing more than 65 meters (~215 ft) tall, Super Heavy Booster 3 (B3) assembly is now just a few major welds away from completion after SpaceX teams mated the final two sections of its propellant tanks and structure. Assembled separately out of approximately 12 barrel sections each made up of 2-4 steel rings, Booster 3’s methane tank (13 rings) and oxygen tank (23 rings) were stacked together on June 29th, just over six weeks after the process began.

Earlier the same day, speaking at the 2021 Mobile World Congress, Musk confirmed what was now fairly clear to most observers, stating that SpaceX is “going to do its best” to complete Starship’s first orbital (or, at least, space) launch attempt “in the next few months.” In other words, a several-month-old launch target of no later than July 2021 is most likely out of reach despite a strong effort from SpaceX.

The most significant technical hurdles still in the way involve a few incremental Starship milestones and, more importantly, the qualification of the largest and most powerful rocket booster ever built. Standing almost as tall as an entire two-stage Falcon 9 or Falcon Heavy, Super Heavy is expected to weigh more than 3500 tons (~7.7 million lbs) and produce at least ~5000 tons (~11 million lbf) of thrust at liftoff – more than any other rocket booster in history, liquid or solid.

Borrowing heavily from Starship, Super Heavy is mostly built with the same techniques out of the same steel rings, stringers, and structures, save for a few booster-specific components. However, Super Heavy is also designed to use 29-32 Raptor engines while the most SpaceX has ever simultaneously installed, tested, or flown is three. In other words, while Super Heavy is in many ways simpler than Starship, it will still be treading plenty of new ground when it heads to the launch pad for the first time.

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Booster 3 is sporting a mysterious and sturdy bracket-like structure holding a pressure vessel and some kind of plumbing. (NASASpaceflight – bocachicagal)
Former Starship Suborbital Mount A has been modified for booster testing. (NASASpaceflight – bocachicagal)

Plenty of final integration tasks remain before Super Heavy B3 will be ready to start qualification testing but SpaceX could feasibly be ready to roll the booster to the launch site within the next week or two. Once installed on a former Starship launch mount that’s been customized for booster testing, Super Heavy will likely be put through its first cryogenic proof and static fire test(s) to verify that the massive rocket is performing as expected. The static fire process could be fairly lengthy if SpaceX decides to incrementally increase the number of Raptor engines installed.

In the likely event that Booster 3 begins testing without engines installed, SpaceX will also have to go through the process of installing up to 29 Raptors while Super Heavy is sitting out in the elements on a launch mount. Based on experience with Starship, installing that many engines in situ could take at least several days – and maybe longer. All told, the fun is only just beginning.

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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Tesla FSD fleet is nearing 7 billion total miles, including 2.5 billion city miles

As can be seen on Tesla’s official FSD webpage, vehicles equipped with the system have now navigated over 6.99 billion miles.

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Tesla’s Full Self-Driving (Supervised) fleet is closing in on almost 7 billion total miles driven, as per data posted by the company on its official FSD webpage. 

These figures hint at the massive scale of data fueling Tesla’s rapid FSD improvements, which have been quite notable as of late.

FSD mileage milestones

As can be seen on Tesla’s official FSD webpage, vehicles equipped with the system have now navigated over 6.99 billion miles. Tesla owner and avid FSD tester Whole Mars Catalog also shared a screenshot indicating that from the nearly 7 billion miles traveled by the FSD fleet, more than 2.5 billion miles were driven inside cities. 

City miles are particularly valuable for complex urban scenarios like unprotected turns, pedestrian interactions, and traffic lights. This is also the difference-maker for FSD, as only complex solutions, such as Waymo’s self-driving taxis, operate similarly on inner-city streets. And even then, incidents such as the San Francisco blackouts have proven challenging for sensor-rich vehicles like Waymos. 

Tesla’s data edge

Tesla has a number of advantages in the autonomous vehicle sector, one of which is the size of its fleet and the number of vehicles training FSD on real-world roads. Tesla’s nearly 7 billion FSD miles then allow the company to roll out updates that make its vehicles behave like they are being driven by experienced drivers, even if they are operating on their own. 

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So notable are Tesla’s improvements to FSD that NVIDIA Director of Robotics Jim Fan, after experiencing FSD v14, noted that the system is the first AI that passes what he described as a “Physical Turing Test.” 

“Despite knowing exactly how robot learning works, I still find it magical watching the steering wheel turn by itself. First it feels surreal, next it becomes routine. Then, like the smartphone, taking it away actively hurts. This is how humanity gets rewired and glued to god-like technologies,” Fan wrote in a post on X. 

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Tesla starts showing how FSD will change lives in Europe

Local officials tested the system on narrow country roads and were impressed by FSD’s smooth, human-like driving, with some calling the service a game-changer for everyday life in areas that are far from urban centers.

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Credit: Grok Imagine

Tesla has launched Europe’s first public shuttle service using Full Self-Driving (Supervised) in the rural Eifelkreis Bitburg-Prüm region of Germany, demonstrating how the technology can restore independence and mobility for people who struggle with limited transport options. 

Local officials tested the system on narrow country roads and were impressed by FSD’s smooth, human-like driving, with some calling the service a game-changer for everyday life in areas that are far from urban centers.

Officials see real impact on rural residents

Arzfeld Mayor Johannes Kuhl and District Administrator Andreas Kruppert personally tested the Tesla shuttle service. This allowed them to see just how well FSD navigated winding lanes and rural roads confidently. Kruppert said, “Autonomous driving sounds like science fiction to many, but we simply see here that it works totally well in rural regions too.” Kuhl, for his part, also noted that FSD “feels like a very experienced driver.”

The pilot complements the area’s “Citizen Bus” program, which provides on-demand rides for elderly residents who can no longer drive themselves. Tesla Europe shared a video of a demonstration of the service, highlighting how FSD gives people their freedom back, even in places where public transport is not as prevalent.

What the Ministry for Economic Affairs and Transport says

Rhineland-Palatinate’s Minister Daniela Schmitt supported the project, praising the collaboration that made this “first of its kind in Europe” possible. As per the ministry, the rural rollout for the service shows FSD’s potential beyond major cities, and it delivers tangible benefits like grocery runs, doctor visits, and social connections for isolated residents. 

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“Reliable and flexible mobility is especially vital in rural areas. With the launch of a shuttle service using self-driving vehicles (FSD supervised) by Tesla in the Eifelkreis Bitburg-Prüm, an innovative pilot project is now getting underway that complements local community bus services. It is the first project of its kind in Europe. 

“The result is a real gain for rural mobility: greater accessibility, more flexibility and tangible benefits for everyday life. A strong signal for innovation, cooperation and future-oriented mobility beyond urban centers,” the ministry wrote in a LinkedIn post

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Tesla China quietly posts Robotaxi-related job listing

Tesla China is currently seeking a Low Voltage Electrical Engineer to work on circuit board design for the company’s autonomous vehicles.

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Credit: Tesla

Tesla has posted a new job listing in Shanghai explicitly tied to its Robotaxi program, fueling speculation that the company is preparing to launch its dedicated autonomous ride-hailing service in China. 

As noted in the listing, Tesla China is currently seeking a Low Voltage Electrical Engineer to work on circuit board design for the company’s autonomous vehicles.

Robotaxi-specific role

The listing, which was shared on social media platform X by industry watcher @tslaming, suggested that Tesla China is looking to fill the role urgently. The job listing itself specifically mentions that the person hired for the role will be working on the Low Voltage Hardware team, which would design the circuit boards that would serve as the nervous system of the Robotaxi. 

Key tasks for the role, as indicated in the job listing, include collaboration with PCB layout, firmware, mechanical, program management, and validation teams, among other responsibilities. The role is based in Shanghai.

China Robotaxi launch

China represents a massive potential market for robotaxis, with its dense urban centers and supportive policies in select cities. Tesla has limited permission to roll out FSD in the country, though despite this, its vehicles have been hailed as among the best in the market when it comes to autonomous features. So far, at least, it appears that China supports Tesla’s FSD and Robotaxi rollout.

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This was hinted at in November, when Tesla brought the Cybercab to the 8th China International Import Expo (CIIE) in Shanghai, marking the first time that the autonomous two-seater was brought to the Asia-Pacific region. The vehicle, despite not having a release date in China, received a significant amount of interest among the event’s attendees. 

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