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SpaceX rolls next Starship prototype to the launch pad

SpaceX is back on the road to its next Starship hop test barely a week after Starship SN5's debut. (NASASpaceflight - bocachicagal)

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SpaceX’s sixth full-scale Starship prototype has rolled from its Boca Chica, Texas factory to a nearby launch pad in a sure sign that preparation for a second hop test is well underway.

Barely a week after Starship SN5 became the first such prototype to take flight, SpaceX has transported the rocket back to an assembly bay and replaced it at the launch pad with Starship SN6. Just shy of a carbon copy of SN5, SN6 was built at the same time with only a few small design tweaks. While SN6 is not exactly the significant upgrade promised to start with Starship SN8, the ship is nevertheless brand new and ready to begin testing.

SN5’s spectacular hop debut – while a major success – still resulted in some minor damage and CEO Elon Musk says that SpaceX will try to reuse the prototype, but it likely needs at least a week or two of inspections and repairs. Thanks to SN5’s success, though, sister ship SN6 has become much more valuable, whereas a failed SN5 hop could have easily consigned both prototypes to the scrap heap to give Starship SN8 priority. Instead, Starship SN6 is now next in line.

Hours after Starship SN5 rolled from pad to factory to take Starship SN6’s place beside SN8 in the assembly bay, the flight-proven rocket’s sister ship hit the open road and arrived at the launch pad after a few-mile journey.

Two Starships pass in the day. (NASASpaceflight – bocachicagal)

After a brief night spent sitting on its transporter, Starship SN6 was lifted by crane onto the pad’s launch mount – briskly refurbished after SN5’s launch debut just eight days prior – on the afternoon of August 12th. Work to install the rocket on the launch mount continued into the night.

Notably, SpaceX has yet to file additional road closures after two used on August 11th for Starship SN5 and SN6 transport operations. Technically, with Starship SN6 now on the launch pad, SpaceX could feasibly file road closures for SN6’s first major tests just a day or less prior to their start, but it’s more likely that the company is planning to kick off the test campaign late this week or early next.

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Like its predecessors, SpaceX will begin by putting SN6 through an ambient-temperature pressure test with nitrogen gas to check for leaks and verify general functionality. Once complete, Starship SN6 will have to pass a cryogenic proof test combined with the simulated ~250-ton (~550,000 lb) thrust of a Raptor engine. By using liquid nitrogen instead of actual methane and oxygen propellant, SpaceX removes the risk of a catastrophic explosion or fire were the unproven ship to leak or burst. Finally, with a proof test complete, teams can install a Raptor engine on SN6 and turn the ship around for its first methalox wet dress rehearsal (WDR), engine preburner, and static fire tests – possibly all in one go if all systems cooperate.

Starship SN5 nailed an unusual landing thanks to its lone off-center Raptor engine. (SpaceX)

With any luck, SN6 – building off of experience gained from SN5 operations – will have a more streamlined test campaign, culminating in the second-ever hop of a full-scale Starship prototype. According to Musk, SpaceX’s new goal is to perform multiple hop tests until flying Starships (at least at low altitudes) is more or less routine.

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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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BREAKING: Tesla launches public Robotaxi rides in Austin with no Safety Monitor

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Tesla has officially launched public Robotaxi rides in Austin, Texas, without a Safety Monitor in the vehicle, marking the first time the company has removed anyone from the vehicle other than the rider.

The Safety Monitor has been present in Tesla Robotaxis in Austin since its launch last June, maintaining safety for passengers and other vehicles, and was placed in the passenger’s seat.

Tesla planned to remove the Safety Monitor at the end of 2025, but it was not quite ready to do so. Now, in January, riders are officially reporting that they are able to hail a ride from a Model Y Robotaxi without anyone in the vehicle:

Tesla started testing this internally late last year and had several employees show that they were riding in the vehicle without anyone else there to intervene in case of an emergency.

Tesla has now expanded that program to the public. It is not active in the entire fleet, but there are a “few unsupervised vehicles mixed in with the broader robotaxi fleet with safety monitors,” Ashok Elluswamy said:

Tesla Robotaxi goes driverless as Musk confirms Safety Monitor removal testing

The Robotaxi program also operates in the California Bay Area, where the fleet is much larger, but Safety Monitors are placed in the driver’s seat and utilize Full Self-Driving, so it is essentially the same as an Uber driver using a Tesla with FSD.

In Austin, the removal of Safety Monitors marks a substantial achievement for Tesla moving forward. Now that it has enough confidence to remove Safety Monitors from Robotaxis altogether, there are nearly unlimited options for the company in terms of expansion.

While it is hoping to launch the ride-hailing service in more cities across the U.S. this year, this is a much larger development than expansion, at least for now, as it is the first time it is performing driverless rides in Robotaxi anywhere in the world for the public to enjoy.

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Investor's Corner

Tesla Earnings Call: Top 5 questions investors are asking

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(Credit: Tesla)

Tesla has scheduled its Earnings Call for Q4 and Full Year 2025 for next Wednesday, January 28, at 5:30 p.m. EST, and investors are already preparing to get some answers from executives regarding a wide variety of topics.

The company accepts several questions from retail investors through the platform Say, which then allows shareholders to vote on the best questions.

Tesla does not answer anything regarding future product releases, but they are willing to shed light on current timelines, progress of certain projects, and other plans.

There are five questions that range over a variety of topics, including SpaceX, Full Self-Driving, Robotaxi, and Optimus, which are currently in the lead to be asked and potentially answered by Elon Musk and other Tesla executives:

SpaceX IPO is coming, CEO Elon Musk confirms

  1. You once said: Loyalty deserves loyalty. Will long-term Tesla shareholders still be prioritized if SpaceX does an IPO?
    1. Our Take – With a lot of speculation regarding an incoming SpaceX IPO, Tesla investors, especially long-term ones, should be able to benefit from an early opportunity to purchase shares. This has been discussed endlessly over the past year, and we must be getting close to it.
  2. When is FSD going to be 100% unsupervised?
    1. Our Take – Musk said today that this is essentially a solved problem, and it could be available in the U.S. by the end of this year.
  3. What is the current bottleneck to increase Robotaxi deployment & personal use unsupervised FSD? The safety/performance of the most recent models or people to monitor robots, robotaxis, in-car, or remotely? Or something else?
    1. Our Take – The bottleneck seems to be based on data, which Musk said Tesla needs 10 billion miles of data to achieve unsupervised FSD. Once that happens, regulatory issues will be what hold things up from moving forward.
  4. Regarding Optimus, could you share the current number of units deployed in Tesla factories and actively performing production tasks? What specific roles or operations are they handling, and how has their integration impacted factory efficiency or output?
    1. Our Take – Optimus is going to have a larger role in factories moving forward, and later this year, they will have larger responsibilities.
  5. Can you please tie purchased FSD to our owner accounts vs. locked to the car? This will help us enjoy it in any Tesla we drive/buy and reward us for hanging in so long, some of us since 2017.
    1. Our Take – This is a good one and should get us some additional information on the FSD transfer plans and Subscription-only model that Tesla will adopt soon.

Tesla will have its Earnings Call on Wednesday, January 28.

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Elon Musk

Elon Musk shares incredible detail about Tesla Cybercab efficiency

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(Credit: Tesla North America | X)

Elon Musk shared an incredible detail about Tesla Cybercab’s potential efficiency, as the company has hinted in the past that it could be one of the most affordable vehicles to operate from a per-mile basis.

ARK Invest released a report recently that shed some light on the potential incremental cost per mile of various Robotaxis that will be available on the market in the coming years.

The Cybercab, which is detailed for the year 2030, has an exceptionally low cost of operation, which is something Tesla revealed when it unveiled the vehicle a year and a half ago at the “We, Robot” event in Los Angeles.

Musk said on numerous occasions that Tesla plans to hit the $0.20 cents per mile mark with the Cybercab, describing a “clear path” to achieving that figure and emphasizing it is the “full considered” cost, which would include energy, maintenance, cleaning, depreciation, and insurance.

ARK’s report showed that the Cybercab would be roughly half the cost of the Waymo 6th Gen Robotaxi in 2030, as that would come in at around $0.40 per mile all in. Cybercab, at scale, would be at $0.20.

Credit: ARK Invest

This would be a dramatic decrease in the cost of operation for Tesla, and the savings would then be passed on to customers who choose to utilize the ride-sharing service for their own transportation needs.

The U.S. average cost of new vehicle ownership is about $0.77 per mile, according to AAA. Meanwhile, Uber and Lyft rideshares often cost between $1 and $4 per mile, while Waymo can cost between $0.60 and $1 or more per mile, according to some estimates.

Tesla’s engineering has been the true driver of these cost efficiencies, and its focus on creating a vehicle that is as cost-effective to operate as possible is truly going to pay off as the vehicle begins to scale. Tesla wants to get the Cybercab to about 5.5-6 miles per kWh, which has been discussed with prototypes.

Additionally, fewer parts due to the umboxed manufacturing process, a lower initial cost, and eliminating the need to pay humans for their labor would also contribute to a cheaper operational cost overall. While aspirational, all of the ingredients for this to be a real goal are there.

It may take some time as Tesla needs to hammer the manufacturing processes, and Musk has said there will be growing pains early. This week, he said regarding the early production efforts:

“…initial production is always very slow and follows an S-curve. The speed of production ramp is inversely proportionate to how many new parts and steps there are. For Cybercab and Optimus, almost everything is new, so the early production rate will be agonizingly slow, but eventually end up being insanely fast.”

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