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SpaceX’s Starship Super Heavy booster needs a custom assembly tower

SpaceX could begin assembling Starship's first Super Heavy boosterjust a few months from now. (SpaceX)

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SpaceX CEO Elon Musk has confirmed that Starship’s Super Heavy rocket booster will get its own tower-like vehicle assembly building (VAB) – and work on the structure may have already begun.

While the only visible work SpaceX has thus far completed on its next-generation Starship launch vehicle is related to the more complex and unproven upper stage of the rocket, its Super Heavy first stage (booster) is just as critical. For SpaceX, Starship was the perfect starting point, itself following on the footsteps of a largely successful multi-year Raptor engine development program. Substantially smaller than Super Heavy and requiring 5-10 times fewer engines, Starship serves as a testbed for an almost entirely new suite of technologies and strategies SpaceX is employing to build massive rockets out of commodity steel.

In recent months, particularly following the first successful pressure test of a full-scale Starship tank section in April, SpaceX has effectively proven that those uncharacteristically cheap and simple materials and methods can, in fact, build rocket structures that should stand up to orbital spaceflight. In theory, aside from the booster’s 31-engine thrust structure, the same methods and materials used to build Starships can be applied unchanged to manufacture Super Heavy. The booster’s almost unfathomable size, however, will necessitate its own dedicated assembly facilities.

Roughly 70m (230 ft) tall, the same height an entire two-stage Falcon 9 rocket (70m), Starship’s Super Heavy booster is outfitted with by four vast grid fins, six fixed landing legs, and up to 31 Raptor engines. (SpaceX)

While Starship itself is not exactly small at ~50m (165 ft) tall and 9m (30ft) wide, the Super Heavy booster tasked with launching the ship on its way to orbit will easily be the largest individual rocket stage ever built. Currently expected to measure 70m (230 ft) tall, Super Heavy – just the first stage of the Starship launch vehicle – will already be as tall as an entire Falcon 9 or Falcon Heavy and weigh roughly three times more than the latter triple-booster rocket when fully fueled. At liftoff, Super Heavy will produce more than triple the thrust of Falcon Heavy and double the thrust of Saturn V, the most powerful liquid-fueled rocket to reach orbit.

SpaceX’s Starship VAB and what is likely the foundation of a new Super Heavy VAB are visible here in a May 2020 flyover. (LabPadre)
Completed in February 2020, SpaceX is already simultaneously stacking multiple Starships (SN5 & SN6) in its new VAB. (NASASpaceflight – bocachicagal)

Thanks to the sheer size of the booster, SpaceX’s existing Starship-sized vehicle/vertical assembly building (VAB) is far too small for Super Heavy and is even too short to fully stack a ~50m Starship. SpaceX’s contractor of choice started assembling that VAB around January 15th and the facility was able to begin supporting its first Starship stacking and welding operations on March 2nd, just a month and a half later, with the structure fully completed by March 18th. As such, assuming the in-work foundation is as close to completion as it seems and SpaceX uses the same contractor for the next building, Super Heavy’s VAB could be ready to build the first massive booster prototype as early as July or August. Things could take a bit longer given that Musk says the booster VAB will be 81m (265 ft) tall, nearly twice the height of Starship’s VAB, but likely by no more than a few weeks.

That timeline meshes well with a senior SpaceX engineer and executive’s recent suggestion that the first orbital Starship launch attempt could still happen before the end of the year. Of course, for Super Heavy to become a genuine priority for SpaceX and receive the resources necessary to achieve that extremely ambitious goal, Starship will have to perform almost flawlessly during a series of increasingly challenging tests planned over the next few months. First up, SpaceX needs to finish repairing the launch pad after Starship SN4 exploded during testing and Starship SN5 needs to be transported to the pad to complete acceptance tests, static fire(s), and its first 150m (~500 ft) hop test. After that, SpaceX will either move on to a 2 km (1.25 mi) hop or a more ambitious 20 km (12.5 mi) flight designed to test Starship’s skydiver-like approach to landing.

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If Starship SN5 or SN6 manage to complete those aforementioned tests, the horse may actually be in front of the cart for Super Heavy prototype production and Starship’s first orbital launch attempt.

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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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Elon Musk secretly acquires $1B energy company to power the AI future

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Gage Skidmore, CC BY-SA 4.0 , via Wikimedia Commons

Elon Musk flew under the radar with his recent purchase of a $1 billion energy company, according to Federal Trade Commission (FTC) documents.

Transaction number 202612350 listed Tesla and SpaceX frontman Elon Musk as the acquiring party and CF APR Super Holdings LLC as the seller, with New APR Energy, LLC as the acquired entity. The deal, which closed without public announcement, came to light on May 14.

Analysts inferred the deal’s scale from minority stakeholder disclosures, including one report of a 5 percent interest sold for approximately $50.4 million. Fortress Investment Group had purchased APR’s assets in late 2024, rebranded the operation as New APR Energy, and subsequently transferred ownership to Musk.

APR Energy specializes in rapidly deployable power infrastructure. The company maintains one of the world’s largest fleets of mobile gas and diesel turbines, with more than 1.1 gigawatts of generation capacity. Its modular units, which are often trailer-mounted, enable turnkey installations ranging from 20 MW to over 500 MW.

Elon Musk admits he was ‘clearly wrong’ about Anthropic

APR provides full engineering, procurement, construction, operation, and maintenance services for behind-the-meter power plants, serving everything from data centers, utilities, and industrial clients.

The firm has expanded aggressively to meet surging demand, recently adding turbines and deploying over 100 MW for a major AI hyperscaler. Its solutions bridge critical gaps where grid interconnections face delays of two to five years, according to Yahoo.

The acquisition means something more for Musk. As he continues to expand projects in artificial intelligence, especially xAI, his AI venture, there is a greater need to supply energy-intensive supercomputing clusters, including the Colossus project, with what they need: reliable and high-capacity power.

Ownership of APR provides immediate access to flexible generation assets that can be deployed adjacent to data centers, reducing dependence on a strained infrastructure. It also complements Tesla’s energy storage business, so Musk will be able to pull from his own entities to address the rapid scaling demands of AI training and compute.

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Tesla has to fix a big problem with its old headlights, NHTSA says

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tesla model 3 first generation headlight
Credit: Tesla Asia/Twitter

Tesla had a petition protesting a recall to fix a potential issue with 2017-2023 Model Y and Model 3 vehicles’ headlights was denied, as the National Highway Traffic Safety Administration (NHTSA) disagreed with the company’s opinion of things.

The recall covers approximately 19,917 Model Y and Model 3 vehicles built from 2017 to 2023. Tesla initially submitted a noncompliance report for the headlights on these vehicles on March 15, 2024. Tesla then petitioned for an exemption from the fix, which violated FMVSS No. 108 (40 CFR 571.108), arguing that the “noncompliance is inconsequential as it relates to motor vehicle safety.

The NHTSA disagreed, stating that Tesla’s conclusion that the headlights do not increase any risk was not an opinion it shared. The agency said it disagreed with Tesla’s assumption that glare is not increased to surrounding traffic. This issue could be highlighted even more in certain weather conditions.

Tesla will be required to remedy the issue, the NHTSA ruled:

“In consideration of the foregoing, NHTSA has decided that Tesla has not met its burden of persuasion that the subject FMVSS No. 108 noncompliance is inconsequential to motor vehicle safety. Accordingly, Tesla’s petition is hereby denied, and Tesla is consequently obligated to provide notification of and free remedy for that noncompliance under 49 U.S.C. 30118 and 30120.”

The issue here appears to be the angle of the headlights and the brightness they emit during operation. The NHTSA report states that:

“Tesla’s headlamp supplier, Marelli Automotive Lighting, tested 25 right-hand and 25 left-hand lamps, and for this sample, found the maximum photometric intensity measured in the 10°U to 90°U and 90°L to 90°R zone was between 136.2 cd and 230.1 cd for the right-hand lamps and between 117.5 cd and 160.3 cd for the left-hand lamps. According to Tesla, these tests revealed that the photometric intensity of the right-hand and left-hand headlamp lower beam on the subject vehicles may measure as much as 230.1 cd in the 10°U to 90°U and 90°L to 90°R zone, exceeding the maximum photometric intensity by 105.1 cd. Additionally, Tesla states that a left-hand lamp tested by a Transport Canada recognized laboratory measured a maximum of 171.27 cd in the 10°U to 90°U and 90°L to 90°R zone. Despite these measurements exceeding the allowed photometric maximum of 125 cd, Tesla believes that the subject noncompliance is inconsequential to motor vehicle safety.”

Tesla also argued at some points that the headlights had not been deemed responsible for any complaints, accidents, or injuries related to the noncompliance.

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NTSB findings on fatal Tesla crash tell a very different story

The NTSB confirmed the driver, not Tesla’s FSD, caused the fatal Texas house crash.

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The National Transportation Safety Board released preliminary findings Wednesday confirming that a Tesla driver, not the vehicle’s software, caused a fatal crash in Katy, Texas in June. The driver, 44-year-old Michael Butler, had engaged Full Self-Driving Supervised mode on Rose Hollow Lane, a residential street with a 30 mph speed limit, before manually overriding the system by pressing the accelerator pedal all the way to 100%. Data recovered from the 2025 Tesla Model 3 showed the vehicle was traveling over 70 miles per hour when it struck a home and killed 76-year-old Martha Avila, who was inside. Weather was clear, the road was dry, and it was daylight.

Texas man charged in fatal Tesla crash where he blamed Autopilot

Butler told authorities he had passed out at the wheel. But security camera footage obtained by the NTSB told a different story, and showed the car accelerating through an intersection before leaving the road entirely. Police also found that Butler’s phone had Google searches including the terms “Tesla FSD not aggressive enough 2026” and “Tesla FSD too timid,” raising serious questions about how he was using the system before the crash. Butler has since been charged with manslaughter. The victim’s family has filed a lawsuit against both Butler and Tesla, alleging negligence.

The NTSB findings aligned directly with what Tesla VP of AI Software Ashok Elluswamy had already stated publicly on X in the weeks after the crash, writing that “the driver manually overrode self-driving by pressing the accelerator all the way to 100%.” The data confirmed his account.

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