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SpaceX Starship pop test opens the door for 60,000 foot hop [update]
SpaceX has successfully destroyed a Starship ‘test tank’ for the fourth time, opening the door for the first high-altitude prototype to roll to the launch pad as soon as tomorrow.
The culmination of three nights and more than 20 hours of concerted effort, SpaceX was finally able to fill Starship test tank SN7.1 with several hundred tons of liquid nitrogen before dawn on September 23rd. With just an hour left in the day’s test window, SpaceX closed the tank’s vents, allowing its cryogenic contents to boil into gas and expand with no outlet. At 4:57 am CDT, SN7.1 burst, bringing its lengthy test campaign to a decisive end.
A handful of hours later, new road closure notices revealed SpaceX’s plan to roll Starship SN8 – the first full-size prototype and first ship meant for high-altitude testing – from its Boca Chica factory to the launch site.
Update: All road closures planned for Starship SN8’s roll to the launch pad (Sept 24) and first test campaign (Sept 27-29) have been canceled. Stay tuned for updates on the high-altitude prototype’s test schedule.
Short of new information from SpaceX or CEO Elon Musk, little is known about the results of SN7.1’s lengthy test campaign, but the fact that it survived two nights of nondestructive testing – including the use of hydraulic rams to simulate Raptor thrust – effectively clears Starship SN8 for suborbital testing. Based on a speculative, amateur analysis of the aftermath of SN7.1’s burst test, it can also be tentatively concluded that the tank failed almost exactly where one would expect it to: the in-situ weld attaching the upper tank dome to SN7.1’s steel ring hull.
SN7.1’s forward dome appears to have cleanly sheared off around much of its circumferential weld joint – exactly what one would theoretically expect from a good, uniform weld. Assuming that SN7.1 reached pressures well above 8.5 bar (~125 psi) before it burst, the tank’s final test can likely be deemed a success.
The very same day SpaceX kicked off what would become Starship SN7.1’s last burst test attempt, teams worked to install functional flaps on a full-scale Starship prototype (SN8) for the first time ever. Effectively answering the question of whether SpaceX would fully outfit the ship with a nosecone and flaps before its first acceptance tests, SN7.1’s successful pop was followed by road closure notices for SN8’s transport to the launch pad around dawn on September 24th and cryptic “SN8 Testing” as early as September 27th.
As of September 23rd, SN8’s twin aft flaps – large aerodynamic control surfaces meant to stabilize free-falling Starships – have been fully installed alongside ‘aerocovers’ that will protect each flap’s control mechanisms. The only hardware Starship SN8 is missing is a ~20m (~60 ft) tall nosecone, two smaller forward flaps, and the plumbing needed to access a smaller liquid oxygen “header” tank located in the tip of said nose.
At the moment, SpaceX has installed one Starship nosecone prototype atop five unpressurized rings – creating a full nosecone stack. That particular prototype has no liquid oxygen header tank, however, meaning that SpaceX would likely need at least a day or two to weld one of the noses with a header tank atop one of several finished five-ring sections. In other words, to transport SN8 to the pad tomorrow, there’s almost no chance that SpaceX will have time to finish and install a proper nosecone on the prototype, meaning that the company has chosen to test the Starship before that milestone.
Doing so should reduce any inconvenience caused by vehicle failure in the event that Starship SN8’s acceptance test campaign doesn’t go as planned. In hindsight, the inclusion of Starship SN8’s aft flaps and aerocovers during the ship’s first major tests was likely a necessity, given that almost half of each flap and its support structure is installed directly to the skin of its liquid oxygen tank. Theoretically, when chilled to the temperature of liquid nitrogen or oxygen, the diameter of the stainless steel rings Starship SN8 is built out of could shrink by as much as 0.3% (~20 mm or ~0.8 in).
Only half of Starship SN8’s aft flaps will be directly subject to that tank contraction, resulting in a relatively complex environment for such a large, high-stress mechanical system. As such, testing flap actuation under cryogenic loads is likely a critical part of SN8’s cryogenic proof test, otherwise meant to demonstrate the structural integrity and functionality of Starship’s propellant tanks. If SN8 rolls to SpaceX’s launch facilities on schedule, the Starship’s first cryogenic proof test could begin as early as 9pm CDT (UTC-5) on Sunday, September 27th.
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Investor's Corner
Legendary investor Ron Baron says Tesla and SpaceX stock buys will continue
In a wide-ranging appearance on CNBC’s Squawk Box on May 12, legendary investor Ron Baron, founder, CEO, and portfolio manager of Baron Capital, reaffirmed his deep conviction in Elon Musk’s two flagship companies.
Legendary investor Ron Baron says he will continue buying stock of both Tesla and SpaceX, as he continues his support behind CEO Elon Musk, who he says is a special person and “brilliant.”
In a wide-ranging appearance on CNBC’s Squawk Box on May 12, legendary investor Ron Baron, founder, CEO, and portfolio manager of Baron Capital, reaffirmed his deep conviction in Elon Musk’s two flagship companies.
With assets under management approaching $55–56 billion, Baron detailed his firm’s substantial holdings, outlined plans for the anticipated SpaceX IPO, and painted an exceptionally optimistic picture for both Tesla (NASDAQ: TSLA) and SpaceX, framing them as generational opportunities that will reshape industries and deliver extraordinary long-term returns.
Baron Capital’s position in SpaceX has grown dramatically since the firm began investing around 2017. What started as roughly $1.7 billion has ballooned to more than $15 billion, making it the firm’s largest holding.
Tesla ranks second, valued at approximately $5 billion in the portfolio. Together with stakes in xAI and related Musk-led ventures, these investments account for roughly one-third of Baron Capital’s $60 billion in lifetime profits since 1992. Baron emphasized that the growth stems from Musk’s singular ability to execute ambitious visions—from reusable rockets to global satellite internet and beyond.
The centerpiece of the discussion was SpaceX’s expected initial public offering, targeted for mid-2026 following a confidential S-1 filing. Baron announced plans to purchase an additional $1 billion in shares at the IPO.
Ron Baron said today that he plans on buying an additional $1 billion of SpaceX stock during the upcoming IPO:
“At the IPO price, I’ve got an order for $1 billion. I want to buy more stock at the IPO. I don’t know if we’re going to get filled, but we’re going to try. I believe… pic.twitter.com/KOv1HvYcZ0
— Sawyer Merritt (@SawyerMerritt) May 12, 2026
He described the company’s trajectory in sweeping terms: “This is going to become the largest company on the planet.”
He highlighted Starlink’s expansion of high-speed internet to every corner of the globe, the revolutionary economics of reusable rockets, and Starship’s potential to enable massive space-based data centers and interplanetary infrastructure.
Baron sees SpaceX not merely as a rocket company but as a platform poised for exponential scaling once it goes public, with post-IPO appreciation potentially reaching 10- to 20- or even 30-times current levels over the next decade or more.
On Tesla, Baron struck an equally enthusiastic note, declaring that “now is Tesla’s moment.” He projected the stock could reach $2,000 to $2,500 per share within 10 years—implying a market capitalization near $8.3 trillion and roughly 5–6 times upside from recent levels. While Tesla remains a major holding, Baron’s optimism centers on its evolution beyond electric vehicles into an AI, robotics, autonomous-driving, and energy platform.
He pointed to robotaxis, Full Self-Driving (FSD) technology, Optimus humanoid robots, energy storage, and the vast real-world data advantage from Tesla’s global fleet as catalysts that will fundamentally alter the company’s revenue model and valuation multiples. Baron views these developments as transformative, shifting Tesla from a traditional automaker to a high-margin technology and infrastructure powerhouse.
Throughout the interview, Baron’s admiration for Musk was unmistakable. He has likened the entrepreneur to a modern Leonardo da Vinci for his artistic, multidisciplinary approach to solving humanity’s biggest challenges.
Baron’s personal commitment mirrors this confidence: he has repeatedly stated he does not expect to sell a single share of his own Tesla or SpaceX holdings in his lifetime, positioning himself as the “last one out” after his clients. This stance underscores a philosophy of patient, long-term ownership rather than short-term trading.
Baron’s comments arrive at a time of heightened anticipation around SpaceX’s public debut, which could rank among the largest IPOs in history and potentially value the company at $1.5–2 trillion or more at listing.
For investors, his message is clear: the Musk ecosystem—spanning electric vehicles, autonomy, robotics, satellite communications, and space exploration—represents one of the most compelling secular growth stories of the era. While short-term volatility in tech and EV stocks may persist, Baron sees these as buying opportunities for those who share his multi-decade horizon.
In summarizing his outlook, Baron reinforced that the combination of technological breakthroughs, massive addressable markets, and Musk’s leadership creates asymmetric upside that few other investments can match.
For Baron Capital’s clients and long-term Tesla and SpaceX shareholders alike, the investor’s latest CNBC remarks serve as both validation and a call to remain patient through the inevitable ups and downs. As Baron sees it, the best days for both companies—and the returns they can deliver—are still ahead.
Elon Musk
Trump’s invite for Elon just reshuffled Tesla’s big Signature Delivery Event
Tesla rescheduled its final Model S farewell to May 20 after Musk joined Trump in China.
Tesla has rescheduled its Model S and Model X Signature Edition delivery event to Wednesday, May 20, 2026, after abruptly calling off the original May 12 celebration. The event will take place at Tesla’s factory at 45500 Fremont Boulevard in Fremont, California, the same location where the Model S first rolled off the line in 2012. Invitees received a follow-up email asking them to reconfirm attendance and download a new QR code ticket, with Tesla noting that all travel and accommodation expenses remain the buyer’s responsibility.
The reason behind the original cancellation came into focus the same day it was announced. President Trump invited Elon Musk, Apple’s Tim Cook, BlackRock’s Larry Fink, Boeing’s Kelly Ortberg, and executives from Goldman Sachs, Blackstone, Citigroup, and Meta to join his trip to China this week for a summit with President Xi Jinping. The agenda covers trade, artificial intelligence, export controls, Taiwan, and the Iran war, following weeks of escalating friction between Washington and Beijing over AI technology, sanctions, and rare earth exports. Trump wrote on Truth Social, “I am very much looking forward to my trip to China, an amazing Country, with a Leader, President Xi, respected by all.”
Tesla launches 200mph Model S “Gold” Signature in invite-only purchase
The vehicles at the center of all this are the last Model S and Model X units Tesla will ever build. Priced at $159,420 each, the 250 Model S and 100 Model X Signature Edition units come finished in Garnet Red with a one-year no-resale agreement, giving Tesla right of first refusal if the owner decides to sell. As Teslarati reported, the Model S defined Tesla’s early identity as a serious luxury automaker, and the Fremont factory line that built it is now being converted to manufacture Optimus humanoid robots.
Musk’s inclusion in the China delegation drew attention given his very public relationship with Trump, and the invitation signals the two have moved past and past grievances. Trump originally brought Musk on to lead the Department of Government Efficiency following his inauguration, and despite a sharp public dispute in mid-2025, the two have appeared together repeatedly in recent months. A seat on the China trip, the most diplomatically consequential visit of Trump’s current term, puts Musk back at the table on U.S. economic policy at a moment when Tesla’s China revenue remains one of the company’s most important financial pillars.
Tesla has launched a new solution to a rare but relevant Supercharger problem with a new Virtual Waitlist, a remedy that will solve sequencing confusion when there is a line to charge at one of the company’s locations.
Teslarati reported on what we called the Virtual Queue last month. In rare occurrences, there were physical altercations at Superchargers when someone might have cut in line to charge. Tesla started to develop some sort of system that would resolve this issue, and now it is finally rolling it out.
Tesla launches solution to end Supercharger fights once and for all
It will start with a Pilot Program, and Tesla is calling it the ‘Waitlist.’
Announced on May 11 on the official TeslaCharging X account, the pilot program is currently active at sites in Los Gatos, Mountain View, and San Francisco in California, as well as San Jose, CA, and the Bronx, NY (East Gun Hill Road). Drivers are encouraged to share feedback directly through the Tesla app to refine the system before a potential broader rollout.
We’re now testing a new waitlist feature at 5 Supercharger sites. Share feedback through the Tesla app to help us make it better.
– Los Gatos, CA – Los Gatos Boulevard
– Mountain View, CA – El Monte Avenue
– San Francisco, CA – Lombard Street
– San Jose, CA – Saratoga Avenue
-… pic.twitter.com/epTVzpJxgW— Tesla Charging (@TeslaCharging) May 11, 2026
Tesla released the video above to showcase the feature, which automatically joins the waitlist when your vehicle has the Supercharger with the wait as the destination in the navigation. There is also a notification that lets you know your place in line.
In this specific example, the video shows that the wait is less than five minutes, and that there are two cars ahead of the one in the video:
Credit: Tesla
Having a wait at a Supercharger is relatively rare, but it does happen. It is even more frequent now that there are more EVs allowed to use the Supercharger Network. Those non-Tesla EVs can also join the queue, as Tesla added in its social media release of the pilot program that they can join the waitlist using the Tesla app.
The release of this program should help alleviate the rare risk of incidents at Superchargers. Tesla will expand this program as it sees fit, and it gathers valuable data and reviews from users.
Legendary investor Ron Baron says Tesla and SpaceX stock buys will continue
Trump’s invite for Elon just reshuffled Tesla’s big Signature Delivery Event
