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SpaceX Starship rocket set to reach full height for the second time ever

A SpaceX Starship rocket is about to reach its full height for either the second or first time, depending on how it's counted. (NASASpaceflight - bocachicagal)

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A SpaceX Starship prototype is on track to become the first to reach its full, operational height in a permanent fashion, following in the footsteps of a much earlier prototype that had its nose section temporarily installed last year.

Known as Starship Mk1, that prototype served as more of a learning experience, pathfinder, and mockup over the ~8 months it took to build it and the few weeks it took to destroy it. While its conical nose section was partially outfitted with smaller ‘header’ propellant tanks, it was never fully installed, with SpaceX only temporarily stacking it on top of Starship Mk1’s tank section to serve as the centerpiece of CEO Elon Musk’s October 2019 update event. Mk1’s nosecone was removed shortly after the event was over, while the rocket’s more important tank section was rolled to a nearby launch pad for testing.

More than six months later, Starship SN5 appears to be firmly on its way to becoming the first of SpaceX’s next-generation launch vehicle prototypes to have a (mostly) functional nose section permanently installed. If that ends up being the case, SpaceX’s fifth full-scale Starship prototype may become the first to have multiple Raptor engines installed and the first to perform a high-altitude flight test. Of course, that will depend quite heavily on the fate of Starship SN4, currently trapped in limbo after a May 19th static fire caused SpaceX to partially lose control of the rocket.

More or a pathfinder and mockup, Starship Mk1 will soon make way for SN5, now firmly on track to become the first Starship prototype to reach full height. (SpaceX)

While not immediately clear, comments made by CEO Elon Musk and SpaceX officials suggested that the company was aiming to perform low-altitude hops with Starship SN4 and graduate to high-altitude testing with the next prototype off the assembly line (SN5). With a development program as agile as SpaceX’s Starship effort, however, plans are liable to change at almost any moment.

After several pathfinders and rejects, SpaceX has built the first upgraded nosecone set for installation on a Starship rocket. (NASASpaceflight – bocachicagal)

On May 17th, however, it became clear that – at least for the time being – SpaceX fully intends for Starship SN5 to become the first serially-produced ship to have a nosecone installed. On that Sunday, a brand new steel nose section – the fourth built by SpaceX in the last few months – was rolled out of a massive factory tent, revealing labels that rather unambiguously read “SN5”.

SN5 refers to Starship serial number 5, the fifth full-scale rocket prototype overall and fourth built since the start of 2020. Over the last six or so months, SpaceX has dramatically expanded its production footprint in South Texas, reaching a point now where it’s churning out a rough Starship prototype every month, on average. Starship SN5 is no different, with its tank section largely completed as of May 15th, give or take a day or two.

Starship SN5’s tank section was fully stacked on May 12th. (NASASpaceflight – bocachicagal)
By May 14th or 15th, the two tank section halves appeared to be fully welded together. (NASASpaceflight – bocachicagal)
Most recently, a stack of five steel rings appeared in the VAB alongside SN5’s largely finished tank and engine section. (NASASpaceflight – bocachicagal)

Now, on May 19th, a new collection of five stacked steel rings appeared alongside Starship SN5’s largely completed tank and engine section. Combined with the new nosecone labeled “SN5”, it’s now readily and unequivocally apparent that the prototype is probably a matter of days away from having a nosecone installed. Unless SpaceX has adopted different methods for Starship SN6 production and assembly, a stack of five steel rings – lacking any sign of a tank dome welded inside it – will serve as the base that SN5’s nosecone can be stacked on top of. Once stacked with its nose section, Starship SN5 will measure some 50m (~165 ft) tall – at least several meters taller than a Falcon 9 booster.

Starship SN5’s nosecone, May 18th, 2020. (NASASpaceflight – bocachicagal)

The nosecone itself is also quite interesting, featuring two sets of four mysterious thruster nozzles, signs of interior components and reinforcements, and two recessed struts presumably meant to attach to Starship’s forward flaps.

While exciting, there is certainly still a chance that Starship SN4 – trapped at the launch pad – will have to be destroyed or will be unsalvageable even if SpaceX is able to finally access and safe the prototype. If so, Starship SN5 will likely take its place, performing a Raptor static fire, a ~150m (~500 ft) hop test, and an additional ~3 km (~1.9 mi) flight test before potentially moving on to triple Raptor operations and high-altitude flights. Stay tuned for updates on SN4’s fate and SN5’s production status.

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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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Tesla’s northernmost Supercharger in North America opens

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Credit: Tesla

Tesla has opened its northernmost Supercharger in Fairbanks, Alaska, with eight V4 stalls located in one of the most frigid cities in the U.S.

Located just 196 miles from the Arctic Circle, Fairbanks’s average temperature for the week was around -12 degrees Fahrenheit. However, there are plenty of Tesla owners in Alaska who have been waiting for more charging options out in public.

There are only 36 total Supercharger stalls in Alaska, despite being the largest state in the U.S.

Eight Superchargers were added to Fairbanks, which will eventually be a 48-stall station. Tesla announced its activation today:

The base price per kWh is $0.43 at the Fairbanks Supercharger. Thanks to its V4 capabilities, it can charge at speeds up to 325 kW.

Despite being the northernmost Supercharger in North America, it is not even in the Top 5 northernmost Superchargers globally, because Alaska is south of Norway. The northernmost Supercharger is in Honningsvåg, Norway. All of the Top 5 are in the Scandanavian country.

Tesla’s Supercharger expansion in 2025 has been impressive, and although it experienced some early-quarter slowdowns due to V3-to-V4 hardware transitions, it has been the company’s strongest year for deployments.

Through the three quarters of 2025, the company has added 7,753 stations and 73,817 stalls across the world, a 16 percent increase in stations and an 18 percent increase in stalls compared to last year.

Tesla is on track to add over 12,000 stalls for the full year, achieving an average of one new stall every hour, an impressive statistic.

Recently, the company wrapped up construction at its Supercharger Oasis in Lost Hills, California, a 168-stall Supercharger that Tesla Solar Panels completely power. It is the largest Supercharger in the world.

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Tesla hints toward Premium Robotaxi offering with Model S testing

Why Tesla has chosen to use a couple of Model S units must have a reason; the company is calculated in its engineering and data collection efforts, so this is definitely more than “we just felt like giving our drivers a change of scenery.”

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Credit: Sawyer Merritt | X

Tesla Model S vehicles were spotted performing validation testing with LiDAR rigs in California today, a pretty big switch-up compared to what we are used to seeing on the roads.

Tesla utilizes the Model Y crossover for its Robotaxi fleet. It is adequately sized, the most popular vehicle in its lineup, and is suitable for a wide variety of applications. It provides enough luxury for a single rider, but enough room for several passengers, if needed.

However, the testing has seemingly expanded to one of Tesla’s premium flagship offerings, as the Model S was spotted with the validation equipment that is seen entirely with Model Y vehicles. We have written several articles on Robotaxi testing mules being spotted across the United States, but this is a first:

Why Tesla has chosen to use a couple of Model S units must have a reason; the company is calculated in its engineering and data collection efforts, so this is definitely more than “we just felt like giving our drivers a change of scenery.”

It seems to hint that Tesla could add a premium, more luxury offering to its Robotaxi platform eventually. Think about it: Uber has Uber Black, Lyft has Lyft Black. These vehicles and services are associated with a more premium cost as they combine luxury models with more catered transportation options.

Tesla could be testing the waters here, and it could be thinking of adding the Model S to its fleet of ride-hailing vehicles.

Reluctant to remove the Model S from its production plans completely despite its low volume contributions to the overall mission of transitioning the world to sustainable energy, the flagship sedan has always meant something. CEO Elon Musk referred to it, along with its sibling Model X, as continuing on production lines due to “sentimental reasons.”

However, its purpose might have been expanded to justify keeping it around, and why not? It is a cozy, premium offering, and it would be great for those who want a little more luxury and are willing to pay a few extra dollars.

Of course, none of this is even close to confirmed. However, it is reasonable to speculate that the Model S could be a potential addition to the Robotaxi fleet. It’s capable of all the same things the Model Y is, but with more luxuriousness, and it could be the perfect addition to the futuristic fleet.

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Rivian unveils self-driving chip and autonomy plans to compete with Tesla

Rivian, a mainstay in the world of electric vehicle startups, said it plans to roll out an Autonomy+ subscription and one-time purchase program, priced at $49.99 per month and $2,500 up front, respectively, for access to its self-driving suite.

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Credit: Rivian

Rivian unveiled its self-driving chip and autonomy plans to compete with Tesla and others at its AI and Autonomy Day on Thursday in Palo Alto, California.

Rivian, a mainstay in the world of electric vehicle startups, said it plans to roll out an Autonomy+ subscription and one-time purchase program, priced at $49.99 per month and $2,500 up front, respectively, for access to its self-driving suite.

CEO RJ Scaringe said it will learn and become more confident and robust as more miles are driven and it gathers more data. This is what Tesla uses through a neural network, as it uses deep learning to improve with every mile traveled.

He said:

“I couldn’t be more excited for the work our teams are driving in autonomy and AI. Our updated hardware platform, which includes our in-house 1600 sparse TOPS inference chip, will enable us to achieve dramatic progress in self-driving to ultimately deliver on our goal of delivering L4. This represents an inflection point for the ownership experience – ultimately being able to give customers their time back when in the car.”

At first, Rivian plans to offer the service to personally-owned vehicles, and not operate as a ride-hailing service. However, ride-sharing is in the plans for the future, he said:

“While our initial focus will be on personally owned vehicles, which today represent a vast majority of the miles to the United States, this also enables us to pursue opportunities in the rideshare space.”

The Hardware

Rivian is not using a vision-only approach as Tesla does, and instead will rely on 11 cameras, five radar sensors, and a single LiDAR that will face forward.

It is also developing a chip in-house, which will be manufactured by TSMC, a supplier of Tesla’s as well. The chip will be known as RAP1 and will be about 50 times as powerful as the chip that is currently in Rivian vehicles. It will also do more than 800 trillion calculations every second.

RAP1 powers the Autonomy Compute Module 3, known as ACM3, which is Rivian’s third-generation autonomy computer.

ACM3 specs include:

  • 1600 sparse INT8 TOPS (Trillion Operations Per Second).
  • The processing power of 5 billion pixels per second.
  • RAP1 features RivLink, a low-latency interconnect technology allowing chips to be connected to multiply processing power, making it inherently extensible.
  • RAP1 is enabled by an in-house developed AI compiler and platform software

As far as LiDAR, Rivian plans to use it in forthcoming R2 cars to enable SAE Level 4 automated driving, which would allow people to sit in the back and, according to the agency’s ratings, “will not require you to take over driving.”

More Details

Rivian said it will also roll out advancements to the second-generation R1 vehicles in the near term with the addition of UHF, or Universal Hands-Free, which will be available on over 3.5 million miles of roadway in the U.S. and Canada.

Rivian will now join the competitive ranks with Tesla, Waymo, Zoox, and others, who are all in the race for autonomy.

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