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SpaceX’s Starship Mk1 prototype heads to the launch pad – but why?

On October 30th, SpaceX installed half of Starship Mk1 on a new launch mount constructed at its Boca Chica launch pad. (NASASpaceflight - bocachicagal)

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SpaceX has transported (half of) its Starship Mk1 prototype to its South Texas launch pad for the first time ever, signifying that the company is about to enter a major new stage of testing.

The move, however, raises the question: why is SpaceX transporting only half of Starship Mk1 to the launch pad?

Following SpaceX CEO Elon Musk’s September 28th presentation on Starship, the spacecraft prototype was partially disassembled, having essentially been mocked up to stand as a backdrop at the event. The impact was fairly minor, taking up no more than a few days of work, but Starship Mk1 remains in two large, separate pieces – a curved nose section and the ship’s cylindrical propellant tank and propulsion section.

Starship Mk1’s nose and tail sections were separated on October 1st. (NASASpaceflight – bocachicagal)

A little over a month after Musk’s presentation, SpaceX technicians freed Starship Mk1’s lower tank section from a steel mount and temporarily installed the giant half-spacecraft on framework mounted to a Roll Lift transporter. SpaceX has consistently relied on Roll Lifts for the task of transporting Starship’s massive segments both around and between its Boca Chica, Texas build and launch facilities. This time around, only Starship Mk1’s lower half was loaded onto the transporter before being staged overnight near the main gate of SpaceX’s build site.

Although work continued throughout the night, around dawn on October 30th, transport activity restarted in earnest, with technicians preparing to move Starship. A road closure filed with Cameron County suggested that something would occur on the 30th, with followers speculating that Starship Mk1 would be transported to SpaceX’s South Texas launch pad. As it turned out, that speculation was correct, and (half of) Starship Mk1 was indeed moved to the launch pad and installed atop a new launch mount that was built from scratch in just a few months.

(Half a) Starship on the pad

While it’s undeniably thrilling to see Starship Mk1 head to SpaceX’s Boca Chica launch pad for the first time ever, it remains to be seen why exactly only half of the rocket was transported – no mean feat. Although a great deal of progress has been made over the last month outfitting Starship Mk1 with all the wiring, electronics, plumbing, and other subsystems the prototype will need to function, it’s plainly visible that a significant amount of work remains before Starship will be ready for integrated testing.

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A panorama of Starship Mk1’s business end and tank section. Recent work has focused on outfitting Mk1 with an array of wiring and piping, some of which is visible here. (NASASpaceflight – bocachicagal)
SpaceX has made a huge amount of progress on Starship’s new launch mount over the last 1-2 months, but plenty of work clearly remains before it will be ready for full-scale operations. (NASASpaceflight – bocachicagal)

Most notably, as pictured above, the launch mount frame is certainly more or less complete, but most of the complex plumbing, wiring, and power equipment it will need to serve its function is not obviously present. There is admittedly a possibility that SpaceX will reuse the ‘quick disconnect’ umbilical ports used by Starhopper on Starship Mk1, but that remains to be seen.

Starship Mk1 itself has a ways to go before it will be ready for integrated testing. Near the orange plastic is what is believed to be a large propellant feed line, needed to fuel Starship. Those lines have yet to be closed off. (NASASpaceflight – bocachicagal)

Additionally, Starship Mk1 also has some level of work left before it will be ready for its first propellant loading test, let alone flight. Aside from a large amount of wiring and avionics that still needs to be partially run, harnessed, and connected, Starship’s main liquid oxygen and methane feedlines – needed to fuel the rocket – are largely complete but still unfinished.

There are at least a few obvious possible explanations for SpaceX moving the Starship Mk1 tank section to the launch pad in its partially-finished state. The easiest explanation is that SpaceX wants to perform leak and pressure tests of Starship’s tanks as early as possible, even if that involves testing the rocket without its nose (the host of Mk1’s batteries, power controllers, COPVs, pressurization tanks, and more). It’s not clear that Starship Mk1 is – at present – capable of performing a wet dress rehearsal (WDR), a common aerospace test where a rocket is fully fueled and counts down to launch without actually igniting.

Starhopper performed several wet dress rehearsal tests before its final 150m flight test in August 2019. (LabPadre, 07/14/19)

Instead, SpaceX could potentially perform a pressure (or at least leak) test with a neutral gas (or perhaps liquid nitrogen) just to verify that Starship Mk1 is structurally sound before kicking off cryogenic propellant loading. Additionally, it’s possible that SpaceX could get around Mk1’s incomplete propellant feed lines by attaching pad umbilicals directly to the ends of the incomplete feed lines.

At the same time, it’s possible that SpaceX has decided to finish assembling Starship at the launch pad itself, hinted at when a local photographer captured a number of Mk1’s control surfaces and aero covers being moved around shortly after Starship was moved to the pad. Time will tell. For the time being, SpaceX has no more road closures scheduled (meaning no nose section transport) until November 7th and 8th, followed by another on the 12th.

Stay tuned to find out what transpires!

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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 Semi gets strange-but-understandable comparison from Jay Leno

In a recent interview with MotorTrend, legendary comedian and automotive enthusiast Jay Leno shared his impressions after driving Tesla’s long-range Semi truck, offering one of the most vivid descriptions to date:

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Credit: Jay Leno's Garage

The Tesla Semi recently received a strange-but-understandable comparison from automotive enthusiast and former long-time late-night television show host Jay Leno.

In a recent interview with MotorTrend, legendary comedian and automotive enthusiast Jay Leno shared his impressions after driving Tesla’s long-range Semi truck, offering one of the most vivid descriptions to date:

“It’s like driving an office building.”

The comparison may seem quirky—office buildings evoke images of immobility rather than motion—but it aptly conveys the experience of commanding a massive 23,000-pound Class 8 electric truck that delivers sports-car acceleration.

Lenotested the production-spec Long Range model, which is rated for up to 500 miles of range. He was visibly impressed by its performance, noting how the enormous vehicle moves with surprising urgency.

“It’s as fast as a Tesla, but it’s like driving an office building,” he remarked. “It’s this huge thing that moves like right now. You go 500 miles. You get 60% charge in 30 minutes. You’re saving on fuel costs. It seems quite good.”

The reaction highlights the cognitive dissonance at the core of the Tesla Semi. Traditional diesel semi-trucks are slow, noisy, and expensive to run. The Semi rewrites the rules with instant torque from its tri-motor electric powertrain, producing up to 800 kW.

Despite its size, the truck feels agile thanks to full electric steering assist, upgraded actuators borrowed from the Cybertruck, and a 48-volt electrical architecture that improves responsiveness and efficiency.

Tesla reports real-world energy consumption below 1.7 kWh per mile for the Long Range version. Megacharger stations can deliver a 60% charge in roughly 30 minutes, making the truck suitable for long-haul operations.

Additional features include an electric Power Take-Off (ePTO) capable of 25 kW for trailer refrigeration or other equipment, and a driver-focused cab with a central seating position for optimal visibility and a quiet, high-tech interior.

Fleet operators stand to benefit significantly from the economics. Diesel trucks often cost nearly one dollar per mile when including fuel, maintenance, and downtime.

Tesla projects the Semi can reduce operating costs to as low as 15 cents per mile through cheaper electricity, regenerative braking that minimizes brake wear, and reduced service requirements. While early deployments, like Pepsi’s, focused on shorter routes, the 500-mile variant targets cross-country applications.

Obstacles remain. A fully loaded tractor-trailer can reach 80,000 pounds, which reduces real-world range compared to the unloaded test conditions. Building out a nationwide Megacharger network will be essential for broader adoption. The Semi also carries a higher upfront price than conventional diesels, though total cost of ownership and available incentives frequently tip the scales in its favor over time.

Tesla Semi hauls fresh Cybercab batch as Robotaxi era takes hold

Leno’s “office building” description resonates because it captures the unexpected thrill of piloting something so large yet so capable. As the trucking industry faces pressure to cut emissions and control rising fuel expenses, the Semi offers a compelling alternative that excels in performance, comfort, and efficiency.

Coming from a man who has driven everything from vintage classics to modern hypercars, Leno’s genuine enthusiasm adds weight to the verdict.

The Tesla Semi is emerging as more than an experimental EV—it represents a practical vision for the future of heavy-duty transport where massive rigs accelerate instantly, and the numbers finally make sense. If fleet results continue to validate the claims, the era of diesel dominance could be drawing to a close.

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Tesla expands its mass-market color palette in the U.S.

Delivering a fresh splash of color to its lineup, Tesla is giving U.S. buyers two stunning new blue options that are already turning heads.

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Credit: Brand0n | X

Tesla has expanded the color palette it offers on its mass market vehicles in the United States, giving buyers of the Model 3 and Model Y a few additional options than before.

Delivering a fresh splash of color to its lineup, Tesla is giving U.S. buyers two stunning new blue options that are already turning heads. Starting on May 8, the automaker updated its North American configurator to introduce Marine Blue on Model Y Premium trims and Frost Blue exclusively on the Model 3 Performance.

The move replaces the long-running Deep Blue Metallic, a staple for over eight years, and brings previously exclusive shades stateside.

Marine Blue, a deep, rich oceanic hue formerly limited to Europe and Asia-Pacific markets, is now available on Model 3 and Model Y RWD and Long Range AWD Premium variants. Priced at a $1,000 upgrade—standard for Tesla’s premium paints—it delivers a sophisticated, metallic finish that shifts beautifully under light.

Tesla North America highlighted the change directly in an official post, confirming Marine Blue as the new flagship blue for non-Performance models.

Frost Blue, on the other hand, is the real crowd-pleaser for enthusiasts. Previously reserved for the flagship Model S and Model X, this lighter, icy metallic shade is now offered at no extra cost on Model 3 Performance and Model Y Performance trims.

Performance buyers effectively get a premium color included in the base price, a smart perk that Tesla has extended to higher-end variants across the board. Early in-person sightings and configurator renders show Frost Blue’s cool, modern vibe popping against the cars’ sleek lines, especially with black wheels and red brake calipers.

The timing couldn’t be better. With Tesla pushing refreshed Model 3 and Model Y refreshes amid growing competition, these updates add visual excitement without major redesigns.

Deep Blue Metallic orders are being transitioned to the new shades, according to customer reports and Tesla communications. In the U.S., Puerto Rico, and Mexico, the options are live now; Canada sees limited Frost Blue availability on the Model 3 Performance.

Tesla’s color strategy continues to evolve, borrowing from higher-end models to refresh mass-market EVs. Now that we bid farewell to the Model S and Model X, some of their colors might be available on the more widely available Model 3 and Model Y.

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Tesla Semi’s official battery capacity leaked by California regulators

A California regulatory filing just confirmed the exact battery size inside each Tesla Semi variant.

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A regulatory filing published by the California Air Resources Board in April 2026 has put official numbers on what Tesla Semi owners and fleet buyers have long wanted confirmed: the exact battery capacities of both the Long Range and Standard Range Semi truck variants. CARB is California’s independent air quality regulator, and it certifies zero-emission powertrains before they can be sold or operated in the state. When a manufacturer submits a vehicle for certification, the resulting executive order becomes a public document, making it one of the most reliable sources for confirmed production specs on any EV.

The document lists two certified powertrain configurations. The Long Range Semi carries a usable battery capacity of 822 kWh, while the Standard Range version comes in at 548 kWh. Both use lithium-ion NCMA chemistry and share the same peak and steady-state motor output ratings of 800 kW and 525 kW respectively. Cross-referencing Tesla’s published efficiency figure of approximately 1.7 kWh per mile under full load, the 822 kWh pack supports roughly 480 miles of real-world range, which aligns closely with Tesla’s advertised 500-mile figure for the Long Range trim. The 548 kWh Standard Range pack works out to approximately 320 miles, again consistent with Tesla’s stated 325-mile target.

Here is a direct comparison of the two versions based on the CARB filing and published specs:

Tesla Semi Spec Long Range Standard Range
Battery Capacity 822 kWh 548 kWh
Battery Chemistry NCMA Li-Ion NCMA Li-Ion
Peak Motor Power 800 kW 525 kW
Estimated Range ~500 miles ~325 miles
Efficiency ~1.7 kWh/mile ~1.7 kWh/mile
Est. Price ~$290,000 ~$260,000
GVW Rating 82,000 lbs 82,000 lbs

The timing of this certification is not incidental. On April 29, 2026, Semi Programme Director Dan Priestley confirmed on X that high-volume production is now ramping at Tesla’s dedicated 1.7-million-square-foot facility in Sparks, Nevada. A key advantage of the Nevada location is vertical integration: the 4680 battery cells powering the Semi are manufactured in the same complex, eliminating the supply chain bottleneck that had delayed the program for years.

Tesla’s long-term goal is to reach a production capacity of 50,000 trucks annually at the Nevada factory, which would represent roughly 20 percent of the entire North American Class 8 market. With CARB certification now in hand and the production line running, the regulatory and manufacturing groundwork for that target is in place.

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