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SpaceX’s Starship to grow in height as workers prepare to stack its top section
SpaceX CEO Elon Musk has teased new details and posted several new photos of Starship Mk1, taken on September 25th as employees worked to lift the spacecraft’s lower half onto a mobile transporter. Up next: stacking the rocket’s two halves to reach its final 50m (160 ft) height.
The company is currently working around the clock to complete Starship Mk1’s assembly and integration ahead of Elon Musk’s planned September 28th presentation, meant to provide a detailed update on the state of the next-generation rocket’s design and development. A huge amount of work clearly remains but SpaceX is making major, visible progress almost every single day along the path to Starship’s first flight tests.
On the transporter pic.twitter.com/CGNj1MlKAU— Elon Musk (@elonmusk) September 26, 2019
Taken yesterday afternoon, Musk’s photos show scenes before and after technicians placed Starship Mk1’s lower half – its tank and propulsion section – on a ‘Roll-Lift’, a small transporter. It’s unclear why exactly this was done, but SpaceX moved the spacecraft prototype about 100m and then removed it from the transporter.
The most recent movement happened just a few hours ago – technicians used a crane delivered on September 24th to lift the half-Starship onto what looked like half a dozen steel blocks on the ground, all captured live on LabPadre’s 24/7 livestream. In order to install Starship Mk1’s separate landing legs, believed to attach somewhere inside the vehicle’s aft circumference, SpaceX likely needed to lift the aft section off the concrete mount that had been its home for the past several months.
Elon Musk also confirmed that Starship Mk1 will have six landing legs, another strong indicator that the ongoing Thursday morning work is focused on preparing Starship Mk1 for leg installation. According to Musk, Starship Mk1 will weigh as much as 200 metric tons (440,000 lb) empty, which is probably why the rocket prototype’s aft – and heaviest – half had to be loaded onto a Roll-Lift and could not simply be moved by the crane itself.
Starship’s updated design remains a bit of a mystery just two days before Elon Musk is scheduled to present an update, likely including new renders from SpaceX itself. It remains to be seen if Starship’s six landing legs will be fixed (versus retractable) or if the legs on the windward side of the ship will jut out into the airstream. To ensure stability when landing on unprepared terrain, as Musk described, six legs are certainly better than three, but the actual span of those legs is a more relevant determinant of stability. Wide, Falcon 9-style legs would be optimal, indicating that the final ship will likely lean towards legs that can be retracted or at least angled behind Starship’s reentry ‘shadow’.
Still a prototype (and possibly meant solely for suborbital operation), Starship Mk1 (and Mk2) may feature simplified legs and mechanisms to speed things along, serving as more of a rough draft while Starhopper was akin to a Starship abstract or prospectus. At this rate, we won’t have to wait very long at all to find out.
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Elon Musk
The Boring Company’s Prufrock-2 emerges after completing new Vegas Loop tunnel
The new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The Boring Company announced that its Prufrock-2 tunnel boring machine (TBM) has completed another Vegas Loop tunnel in Las Vegas. The company shared the update in a post on social media platform X.
According to The Boring Company’s post, the new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The new tunnel marks the fourth tunnel constructed near Westgate Las Vegas as the Vegas Loop network continues expanding across the city.
The Boring Company also noted that the new tunnel surpassed its previous internal record of 2.26 miles for a single Vegas Loop segment.
Construction of the tunnel involved moving roughly 68,000 cubic yards of dirt. The excavation process also used about 4.8 miles of continuous conveyor belt, powered by six motors totaling 825 horsepower.
The Boring Company’s Prufrock-series all-electric tunnel boring machines are designed to support the rapid expansion of company’s underground transportation projects, including the growing Vegas Loop network. Prufrock machines are designed for reusability, thanks in no small part to their capability to be deployed and retrieved easily through their “porposing” feature.
The Vegas Loop, specifically the Las Vegas Convention Center (LVCC) Loop segment, has already been used during major events. Most recently, the LVCC Loop supported the 2026 CONEXPO-CON/AGG construction trade show, which was held from March 3-7, 2026.
As per The Boring Company, the LVCC Loop transported roughly 82,000 passengers across the convention center campus during the event’s duration.
CONEXPO-CON/AGG is one of the largest construction trade shows in North America, drawing more than 140,000 construction professionals from 128 countries this year.
The LVCC Loop forms the initial segment of the broader Vegas Loop network, which remains under active development as The Boring Company continues building new tunnels throughout the city.
News
Tesla gathers Cybercab fleet in Gigafactory Texas
Images and video of the Cybercab fleet were shared by longtime Giga Texas observer Joe Tegtmeyer in posts on social media platform X.
Tesla appears to be assembling a growing number of Cybercabs at Gigafactory Texas as preparations continue for the vehicle’s mass production. Recent footage shared online has shown over 30 Cybercabs being transported by trucks or staged near testing areas at the facility.
The images and video were shared by longtime Giga Texas observer and drone operator Joe Tegtmeyer in posts on social media platform X.
Interestingly enough, Tegtmeyer noted that many of the Cybercabs being loaded onto transport trucks were still equipped with steering wheels. This suggests that the vehicles are likely testing units rather than the final driverless configuration expected for the company’s Robotaxi service.
The vehicles could potentially be headed to testing sites across the United States as Tesla prepares to expand its Robotaxi fleet.
Additional footage captured at Gigafactory Texas also showed the Cybercab’s side and rear camera washer system operating as vehicles were being loaded onto transport trucks.
The growing number of Cybercabs at Giga Texas comes amidst the company’s announcement that the first production Cybercab has been produced at the facility. Full Cybercab production is expected to begin in April.
The vehicle is expected to play a central role in Tesla’s Robotaxi ambitions as the company looks to expand autonomous ride-hailing operations beyond its early deployments using Model Y vehicles.
Tesla has also linked Cybercab production to its proposed Unboxed manufacturing process, which assembles large vehicle modules separately before integrating them. The approach is intended to reduce production costs and accelerate output.
Musk has also noted that the Cybercab’s ramp will likely begin slowly due to the number of new components and manufacturing steps involved. However, he stated that once the process matures, Cybercab production could scale quickly.
Elon Musk
Elon Musk’s xAI, creator of Grok and Grokipedia, celebrates its third birthday
xAI Memphis highlighted several of its milestones over the years in its celebratory post.
Elon Musk’s artificial intelligence startup xAI has marked its third anniversary. The update was shared in a post from the xAI Memphis account on social media platform X.
xAI Memphis highlighted several of its milestones over the years in its celebratory post.
As per xAI, it has built three massive data centers in the city, launched a coherent cluster of 330,000 GBs, created over 3,000 jobs, and paid over $30 million in taxes to local communities.
xAI’s Memphis operation has become a key part of the company’s infrastructure as the company works to train and deploy its Grok artificial intelligence models. Elon Musk has been quite optimistic about Grok’s potential, noting in the past that the large language model might have a shot at achieving artificial general intelligence (AGI).
xAI’s Memphis’ crown jewel is its Colossus supercomputer cluster. The project was announced in 2024 and has since become the home of one of the world’s largest AI compute facilities. The first phase of Colossus reached its initial 100,000 GPU operational milestone in just 122 days, or just about four months.
Industry figures such as Nvidia CEO Jensen Huang have praised the facility, noting that projects of similar scale typically take two to four years to complete.
xAI has cited Memphis’ central location, skilled workforce, and industrial infrastructure as key reasons for selecting the city as the home of its AI training operations. The company has also emphasized plans to expand the site further as it scales compute capacity for Grok and future AI models.
The Boring Company’s Prufrock-2 emerges after completing new Vegas Loop tunnel
Tesla gathers Cybercab fleet in Gigafactory Texas
