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SpaceX installs two Starship wings ahead of Elon Musk’s Saturday update
SpaceX CEO Elon Musk is just six days away from giving an updated Starship presentation and the company is working relentlessly to get the spacecraft as close to a finished product as possible.
In the last 48 hours, this burst of effort was marked (most notably) by the installation of two of Starship Mk1’s actuating fins/wings, revealing a definite departure from the design Musk and SpaceX revealed almost exactly a year ago. Musk took to Twitter this morning to partially describe some of those design changes and the reasoning behind them.
Musk confirmed that the current design will involve several legs attached to the rear of Starship, separating the fin-leg combination shown in previous tripod-fin renders. Intriguingly, Musk expressed that he has not fully “bought into” this updated design, motivated by analyses that indicated that separating the legs and fins would actually be a lighter solution than combining them. This is certainly unintuitive, but it’s extremely encouraging to hear that Musk is seriously trusting and bowing to the educated opinions of some of the extremely skilled engineers that SpaceX is known for.
Like the circa-2018 design, Starship 2019 will feature two actuating wings/fins near its rear and another two canard-like control surfaces near the nose. A third non-functional fin may or may not serve as a leg in the 2019 design. Those control surfaces will work in concert with “very rapid movement[s]” to ensure the stability of Starship during reentry and atmospheric operations, as well as ensuring that the spacecraft can safely and stably land on a variety of surfaces.

The new legs look quite a bit different as a result of the design change. As the two actuating fins no longer have to reach the ground and double as landing legs, they can be quite a bit smaller and situated further above Starship’s engine section and rear. It’s possible that the stubby fins will have tips attached at their ends to produce a more triangular shape, but we are now heading into unknown terrain until Musk or SpaceX provide updated renders, likely to come later this week.

Of note, based on observations of inactivity at SpaceX’s Cocoa, Florida Starship facilities, it appears that the company is wholly prioritizing Starship Mk1 in order to get the spacecraft prototype as close to finished as possible over the next several days. Work on Starship Mk2, pictured below, appears to have more or less been paused, almost certainly indicating that SpaceX has flown a large portion of its Florida-based workforce to Texas in a bid to expedite Starship Mk1’s assembly.
This is probably the result of CEO Elon Musk requesting that the spacecraft be nearly complete by the time he is supposed to present an updated design overview in Boca Chica, Texas. Knowing Musk, it’s likely that the event will be held with Starship Mk1 as a centerpiece, be it in several pieces or as a single, nearly-complete stack. Set to be livestreamed by SpaceX, that presentation is scheduled to occur on Saturday, September 28th.
Teslarati will be on the ground in Texas to cover the event live and in person. Stay tuned for updates in the coming days!
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Tesla Semi expands pilot program to Texas logistics firm: here’s what they said
Mone said the Tesla Semi it put into its fleet for this test recorded 1.64 kWh per mile efficiency, beating Tesla’s official 1.7 kWh per mile target and delivering a massive leap over conventional diesel trucks.
Tesla has expanded its Semi pilot program to a new region, as it has made it to Texas to be tested by logistics from Mone Transport. With the Semi entering production this year, Tesla is getting even more valuable data regarding the vehicle and its efficiency, which will help companies cut expenditures.
Mone Transport operates in Texas and on the Southern border, and it specializes in cross-border U.S.-Mexico freight operations. After completing some rigorous testing, Mone shared public results, which stand out when compared to efficiency metrics offered by diesel vehicles.
“Mone Transport recently had the opportunity to put the Tesla Semi to the test, and we’re thrilled with the results! Over 4,700 miles of operations at 1.64 kWh/mile in our Texas operation. We’re committed to providing zero-emission transportation to our customers!” the company said in a post on X.
🚨 Mone Transport just recorded an extremely impressive Tesla Semi test:
1.64 kWh per mile over 4,700 miles! https://t.co/xwS2dDeomP pic.twitter.com/oLZHoQgXsu
— TESLARATI (@Teslarati) March 10, 2026
Mone said the Tesla Semi it put into its fleet for this test recorded 1.64 kWh per mile efficiency, beating Tesla’s official 1.7 kWh per mile target and delivering a massive leap over conventional diesel trucks.
Comparable Class 8 diesel semis, typically achieving 6-7 miles per gallon, consume roughly 5.5 kWh per mile in energy-equivalent terms, meaning the Semi uses three to four times less energy while also producing zero tailpipe emissions.
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
The performance of the Tesla Semi in Mone Transport’s testing aligns with data from other participants in the pilot program. ArcBest’s ABF Freight Division logged 4,494 miles over three weeks in 2025, averaging 1.55 kWh per mile across varied routes, including a grueling 7,200-foot Donner Pass climb. The truck “generally matched the performance of its diesel counterparts,” the carrier said.
PepsiCo, which operates the largest known Semi fleet, recorded 1.7 kWh per mile in North American Council for Freight Efficiency testing. Additional pilots showed similar gains: DHL hit 1.72 kWh per mile, and Saia achieved 1.73 kWh per mile.
These metrics underscore the Semi’s ability to slash operating costs through superior efficiency, lower maintenance, and zero-emission operation. As charging infrastructure scales and production ramps toward 2026 targets, participants like Mone Transport are proving electric semis can seamlessly integrate into freight networks, accelerating the industry’s shift to sustainable, high-performance trucking.
Tesla continues to prep for a more widespread presence of the Semi in the coming months as it recently launched the first public Semi Megacharger site in Los Angeles. It is working on building out infrastructure for regional runs on the West Coast initially, with plans to expand this to the other end of the country in the coming years.
Elon Musk
SpaceX weighs Nasdaq listing as company explores early index entry: report
The company is reportedly seeking early inclusion in the Nasdaq-100 index.
Elon Musk’s SpaceX is reportedly leaning toward listing its shares on the Nasdaq for a potential initial public offering (IPO) that could become the largest in history.
As per a recent report, the company is reportedly seeking early inclusion in the Nasdaq-100 index. The update was reported by Reuters, citing people familiar with the matter.
According to the publication, SpaceX is considering Nasdaq as the venue for its eventual IPO, though the New York Stock Exchange is also competing for the listing. Neither exchange has reportedly been informed of a final decision.
Reuters has previously reported that SpaceX could pursue an IPO as early as June, though the company’s plans could still change.
One of the publication’s sources also suggested that SpaceX is targeting a valuation of about $1.75 trillion for its IPO. At that level, the company would rank among the largest publicly traded firms in the United States by market capitalization.
Nasdaq has proposed a rule change that could accelerate the inclusion of newly listed megacap companies into the Nasdaq-100 index.
Under the proposed “Fast Entry” rule, a newly listed company could qualify for the index in less than a month if its market capitalization ranks among the top 40 companies already included in the Nasdaq-100.
If SpaceX is successful in achieving its target valuation of $1.75 trillion, it would become the sixth-largest company by market value in the United States, at least based on recent share prices.
Newly listed companies typically have to wait up to a year before becoming eligible for major indexes such as the Nasdaq-100 or S&P 500.
Inclusion in a major index can significantly broaden a company’s shareholder base because many institutional investors purchase shares through index-tracking funds.
According to Reuters, Nasdaq’s proposed fast-track rule is partly intended to attract highly valued private companies such as SpaceX, OpenAI, and Anthropic to list on the exchange.
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.