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SpaceX’s thin-skinned Starship ‘test tank’ passes first trial
CEO Elon Musk says that a new thin-skinned Starship ‘test tank’ just passed its first trial, taking advantage of delays to Starship SN9’s planned high-altitude launch debut.
Delayed by a lack of FAA approval for unknown reasons, Starship SN9’s 12.5-kilometer (7.8 mi) launch debut (virtually identical to SN8’s 12.5 km launch last month) is in limbo pending an “FAA review” according to Musk. SpaceX thus found itself with at least 24 hours of guaranteed inactivity for Starship SN9, time the company rapidly chose to fill with crane transportation and, more importantly, the first Starship ‘test tank’ stress test in months.
Known as Starship SN7.2, SpaceX’s latest ‘test tank’ is the third to carry the SN7 moniker and appears to have been built primarily to test refinements to the rocket’s structural design. Following test tanks SN7.0 and SN7.1, both used to qualify the use of a new steel alloy on an otherwise unchanged design, SN7.2 – likely built out of the same alloy – is instead focused on determining if SpaceX can begin trimming the margins of an increasingly mature technology.


Curiously, SN7.2 is a sort of fusion of its predecessors: combining the stout stature of SN7.0 with SN7.1’s use of an aft thrust dome, but without SN7.1’s Starship-style skirt (the three rings at its bottom). Welded directly to its black test stand, it’s unclear why SpaceX chose to give SN7.2 a thrust dome, given that the thrust of Raptor engines can only be simulated with hydraulic rams if the tank is installed on one of two Starship launch mounts.
Regardless, whether SpaceX actually tests that aspect of SN7.2, the tank’s most important task is determining if future Starships (and perhaps Super Heavy boosters) can be built out of thinner, lighter steel rings. Its domes appear to be identical to past ships but writing on the exterior of the tank strongly implied that its three rings were built out of 3mm steel rather than the 4mm sheets that have made up every Starship built in the last 12 months.
SpaceX began loading the thin-skinned tank with liquid nitrogen (used to simulate cryogenic propellant without the risk of an explosion) around 9am CST and spent around three hours performing an “initial pressure test.” It’s unclear what that test entailed but it most likely involved raising the tank’s internal pressure to levels achieved by SN7.0 and SN7.1 Musk has previously said that that 6 bar was the bare minimum necessary for orbital flight, translating to 7.5-8.5 bar to achieve an industry-standard safety margin of 25-40%.
That SN7.2 survived that initial pressure test bodes well for the significant mass reductions SpaceX will need to optimize Starships for efficient orbital flight, potentially shaving 5-10 metric tons off the dry mass of future ships. For orbital rocket stages, every single kilogram of mass reduction translates to an extra kilogram of cargo capacity, whereas boost stages (i.e. Super Heavy) offer far more lenient ratios on the order to 10:1, meaning that adding 5-10 kilograms of rocket hardware reduces maximum payload capacity by just ~1 kg.
Depending on when SpaceX is allowed to launch Starship SN9, the company’s next test could involve pressurizing SN7.2 until it bursts, determining if the tank’s thinner skin substantially impacts its performance as a pressure vessel.
News
Tesla is launching a crazy new Rental program with cheap daily rates
This week, Tesla launched its in-house Rental program that will give people a vehicle for between three to seven days, with prices varying and starting at just $60 per day.
Tesla is launching a crazy new Rental program with cheap daily rates, giving people the opportunity to borrow a vehicle in the company’s lineup with an outrageous number of perks.
This week, Tesla launched its in-house Rental program that will give people a vehicle for between three to seven days, with prices varying and starting at just $60 per day.
However, there are additional perks that make it a really great deal, including Free Supercharging and Free Full Self-Driving (Supervised) for the duration of the rental.
There are no limits on mileage or charging, although the terms do not allow you to leave the state you are renting.
Tesla wrote in an email advertising the program:
“Rent a Tesla and see how it makes every errand, commute, and road trip more fun. While it’s yours, try Full Self-Driving (Supervised) and control and monitor your vehicle with the Tesla app.
Schedule your rental for three to seven days starting at $60 per day (plus taxes and fees) and charge for free at any Tesla-owned Supercharger.
Order your own Tesla within seven days of your rental to get up to a $250 credit toward your purchase.”
This is a great opportunity that will convince MANY people to make the jump.
All your concerns about switching are answered within two days. It’s easier than owning a gas car ever has been. https://t.co/QayTf6YVbw pic.twitter.com/TCHqfTRpes
— TESLARATI (@Teslarati) November 8, 2025
Tesla has long adopted the mentality that butts in seats will sell cars, and for the most part, it is a great strategy. Driving a Tesla is different from owning and driving a combustion engine vehicle; it truly feels as if you are in a car from the past when you get back in an ICE car.
This strategy could be looked at as more of a way for people to experience Tesla ownership than anything.
Although some might use it as a typical rental program that will see it be a cool way to drive without putting miles on a personal car, most will use it as the 48-hour test drive was designed for, which is a short-term way to experience EV ownership.
Tesla is only offering this program at a handful of locations currently, including San Diego and Costa Mesa, California.
News
Tesla makes online ordering even easier
Tesla has a great trade-in program that allows you to give the company your vehicle in exchange for cash, even if it’s not an EV. Their trades are mostly fair, but the company seems to undervalue its own vehicles, and there have been plenty of complaints over offers in the past.
Tesla has adjusted its Online Design Studio to make for an easier trade-in process, reflecting the details of the exchange for a more accurate reflection of payment terms.
Tesla has a great trade-in program that allows you to give the company your vehicle in exchange for cash, even if it’s not an EV. Their trades are mostly fair, but the company seems to undervalue its own vehicles, and there have been plenty of complaints over offers in the past.
Trade-ins are usually given by submitting vehicle details, then Tesla sends an email with an offer. Offers are non-negotiable, but do adjust over time, although the latest offer is valid for 30 days.
I traded my ICE vehicle for a Tesla Model Y: here’s how it went
Knowing your new Tesla’s cash price, leasing or loan details, and monthly payment information used to be done by the car buyer. From personal experience, I simply subtracted my trade-in from the cash price of the Tesla Model Y, and I plugged those numbers into the payment calculator.
Now, Tesla is implementing the trade-in process directly into the Design Studio. It will adjust the price of the car and the different monthly payment methods automatically:
Trade-in estimates available directly on our configurator in few states including CA, will cover all of US and Canada next week.
For loyalty customers, if their trade-in VIN is eligible for any loyalty credit, the same will be applied to the estimate. pic.twitter.com/7097vPleMf
— Raj Jegannathan (@r_jegaa) November 8, 2025
The change is already noticed in a handful of states, including California, but it has not rolled out across the board quite yet. It will be implemented in all of the U.S., as well as Canada, this coming week.
The trade-in process is very simple, and after you accept your offer, you simply drop your vehicle off during the delivery process. Making this simple change will be greatly appreciated by owners.
News
Tesla confirms Robotaxi is heading to five new cities in the U.S.
After launching in Austin, Texas, in late June and the Bay Area of California just a few weeks later, Tesla has been attempting to expand its Robotaxi suite to new states and cities in the U.S., and even outside of the country.
Tesla Robotaxi will hit five new cities in the United States in the coming months, the company confirmed.
After launching in Austin, Texas, in late June and the Bay Area of California just a few weeks later, Tesla has been attempting to expand its Robotaxi suite to new states and cities in the U.S., and even outside of the country.
The Robotaxi suite is a ride-hailing service Tesla offers, but the details of it change with each jurisdiction, as regulations vary. For example, in Austin, Tesla can operate the Robotaxi suite without anyone in the driver’s seat, as long as the vehicle does not enter a freeway.

Credit: Tesla
In the Bay Area, a Safety Monitor rides in the driver’s seat, essentially acting as the vehicle operator with Full Self-Driving controlling the car.
The local regulations and how Tesla handles them will continue to be a relevant part of the discussion, especially as the company aims to expand the Robotaxi program to different areas. This has been a primary focus of the company for several months, especially within the United States.
CEO Elon Musk said that Tesla was aiming to launch Robotaxi in Nevada, Arizona, and Florida. However, the company detailed five specific cities where it will launch Robotaxi next during the Annual Shareholder Meeting on Thursday.
Tesla will launch Robotaxi in Las Vegas, Phoenix, Dallas, Houston, and Miami next, broadening its Service Area for the suite to more major cities across the U.S.
It has said it plans to offer the service to half of the U.S. population by the end of the year, but it does not seem as if it will expand to more than a handful of cities this year, which is still tremendous progress, all things considered.
As far as autonomy is concerned, Tesla has always had lofty expectations and has made some even loftier statements.
At the Shareholder Meeting, Musk said that the company would likely be able to enable vehicle owners to text while the vehicle drives, alleviating them from potentially having some of the responsibility they have behind the wheel.
Tesla says texting and driving capability is coming ‘in a month or two’
It is not confirmed that Tesla will roll this out in the next few months, but Musk said there is a possibility.
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