News
SpaceX Starship booster weathers thunderstorm ahead of first ‘cryo proof’
Update: SpaceX’s first Super Heavy cryo proof test is now scheduled no earlier than 6pm to 12am CDT (UTC-5) on Thursday, July 8th 6am to 8pm CDT (UTC-5) on Friday, July 9th. Weather is suboptimal, with intermittent heavy rain – to the extent that a flash flood warning is in effect until Friday evening – expected over the next few days.
Nevertheless, Booster 3 was spotted venting for the first time ever around 9am, suggesting that SpaceX might still try for at least a test or two later today or tomorrow.
Meshing with road and beach closures requested earlier this week, Next Spaceflight reports that a SpaceX Super Heavy booster is scheduled to attempt a ‘cryo proof’ test for the first time as early as Thursday, July 8th.
Known as Booster 3 (B3), SpaceX rolled the first functional Super Heavy prototype – the largest rocket booster ever completed – from the factory to the launch pad on July 1st. One week later, SpaceX appears to be on track to kick off Super Heavy’s first fully-integrated qualification testing, building off of an apparently successful campaign of pressure testing with booster test tank BN2.1. After completing several tests, BN2.1 was rolled back to a scrapyard near SpaceX’s Boca Chica factory, while part of the custom-built stand used for the campaign was then reinstalled on one of the two ‘suborbital mounts’ used for Starship testing over the last year.
Mere days after Mount A’s modifications were completed, Super Heavy Booster 3 was transported to the pad and installed atop it. For whatever reason, SpaceX technicians and engineers spent the next week scouring the rocket’s exterior and interior with the help of an army of boom lifts, turning the basic structure into a functional pressure vessel with all necessary power, telemetry, and plumbing.
99% of that closeout work could have seemingly been done under the cover of SpaceX’s high bay, where Booster 3 was assembled out of dozens of steel rings and domes, but the work appears to have been completed regardless. Workers had to contend with routine South Texas downpours and thunderstorms on Tuesday and Wednesday but were otherwise subjected to fairly mundane winds and weather.
Conditions were most dramatic on Tuesday, with torrential rain only interrupted by the occasional lightning bolt – though Booster 3 and the orbital launch pad’s skyscraper-sized launch tower appeared to make it through the day strike-free.
Now seemingly fully outfitted with all necessary avionics, wiring, and plumbing, Booster 3’s next major objectives will be ambient and cryogenic proof tests, referring to the process of verifying the structural integrity of the rocket first with benign nitrogen gas and later with supercool liquid nitrogen. SpaceX has performed at least a dozen or two ‘cryo proofs’ over the last 18 months and, at this point, qualification testing is fairly routine.
However, Super Heavy B3 is the largest rocket booster ever built and testing such a massive rocket will necessarily force SpaceX to tread some new ground. In fact, it’s not actually clear how exactly SpaceX will perform Booster 3’s first cryo proof given that the suborbital launch complex hosting it has nowhere near enough cryogenic storage capacity to fully fill Super Heavy with more than 3000 tons (~6.6 million lb) of liquid nitrogen.
As always, testing massive, brand-new rockets is no simple feat, so delays are possible – if not outright likely. Regardless, Super Heavy B3’s first test window is scheduled from noon to 8pm CDT (UTC-5) on Thursday, July 8th, with two backups from 6am to 8pm on July 9th and 12pm to 8pm on July 12th. Stay tuned for updates on the first tests of a full-size Super Heavy booster!
Tesla confirmed this morning that it has sent the first production units, manufactured with no steering wheel or pedals, to on-road testing in Austin, sharing video of the first rides with no human controls.
The lack of steering wheels and pedals in the Cybercab aligns with Tesla’s self-certification of Robotaxi as Level 4 SAE, a platform it plans to make widespread through internal vehicles and customer-owned cars that will operate and generate revenue for individuals.
The start of these engineering tests is a major signal for Tesla, which plans to bring driverless, wheel-less, and pedal-less Cybercabs to market in the coming months. With production already well underway at Gigafactory Texas, where the Cybercab is built, there is some inclination to believe the first public rides could happen sooner rather than later.
Engineering tests of the first production Cybercab have begun in Austin pic.twitter.com/fk3KQvcE8a
— Tesla (@Tesla) June 30, 2026
Tesla’s engineering tests will put the Cybercab in real-world scenarios, testing not only the hardware, but more importantly, the software that drives the car around Austin with nobody supervising it within the car.
This is perhaps the biggest part of the internal testing process, especially prior to allowing regular, everyday people to hail the Cybercab for an autonomous ride. These early rides serve as a true benchmark for Tesla: How many rides can it achieve safely? How many miles did it travel consecutively without needing an intervention? What scenarios challenge the Full Self-Driving suite the most?
The proper precautions have already been put into place as well, as Tesla released the First Responders Guide to Cybercab over the weekend, ensuring that emergency services have 24/7 access to Robotaxi Assistance, as well as other boundaries, such as Geofencing features that can be used to redirect autonomous vehicle traffic due to accidents, road closures, construction, or maintenance.
Cybercab seems genuinely close to being added to the Robotaxi fleet in Austin, but Tesla has prioritized safety throughout this entire process. Therefore, we think it could be months before it truly starts giving rides to the public. People have been frustrated with this, but Robotaxi in Austin has a tremendous safety record so far, so the slow rollout has kept people safe and accidents to a minimum.
The most important thing is that Tesla continues to show consistent progress in the Cybercab’s ramp-up toward fleet addition. A few weeks back, we saw the EPA reward the Cybercab a Certificate of Conformity, allowing it to enter the stream of commerce. Then, we saw Tesla add decals, signaling that it was likely about to start testing it publicly. That has now happened.
The next big move will be the announcement of the first rides, so this Summer should be filled with anticipation.
For years, there have been images and videos across social media platforms that have reminded me of when I was a 15-year-old kid teased by “Xbox 720” videos on YouTube. These videos are of the supposed “Tesla Phone” that Elon Musk was secretly developing in between leading Tesla with its electric cars and SpaceX with its reusable rockets.
Would you buy a Tesla phone ? pic.twitter.com/aaTwvvIJit
— Tesla Owners Silicon Valley (@teslaownersSV) October 6, 2023
Although Musk has put those rumors to bed several times, it was never completely out of the realm that he could get involved in cell phones in some capacity. Think outside the box and more macro-level, though. Instead of reinventing the computer, Musk reinvented connectivity by developing Starlink with SpaceX.
It could be something similar, TD Cowen analyst Gregory Williams said in a note last week, where he hinted SpaceX could be gathering some steam to acquire T-Mobile.
Williams said it would be the “clear choice” for SpaceX if it decided to go through with a network acquisition. He also suggested AT&T.
The move would be possible through selling more of its own stock, which would help SpaceX raise the money to purchase T-Mobile, which would cost roughly $300 billion. It could be one of the moves SpaceX makes post-IPO in terms of an acquisition: it already acquired Cursor AI for $60 billion.
Other analysts, like Dan Ives of Wedbush, believe SpaceX and Tesla will eventually merge into one anyway, and that conglomeration could come as soon as this year, some have said.
The implications of SpaceX purchasing T-Mobile are massive. A combined entity would create a truly ubiquitous network: T-Mobile’s terrestrial 5G towers and Starlink’s growing constellation of Direct-to-Cell satellites. This would essentially eliminate dead zones across the U.S. and potentially globally.
SpaceX would instantly become a full-scale facilities-based carrier with satellite differentiation; a huge advantage. This would pressure AT&T and Verizon heavily.
There are also concerns like a potential reduction in long-term competition, and of course, a deal of that size would face intense scrutiny from government agencies.
The strategic fit is compelling due to the existing Starlink–T-Mobile partnership and complementary technologies (space + terrestrial). It could create a dominant integrated communications player. However, the regulatory, financial, and execution hurdles are enormous — this remains highly speculative with no indication SpaceX is actively pursuing it right now.
Tesla revealed a major new Cybercab detail in a guide it released for First Responders, showing new territory in its beliefs and intentions for the ride-hailing-focused vehicle that entered production in April.
The First Responders Guide is released to give fire departments, paramedics, and other emergency personnel the proper guidance on what to do in the event of an accident, entrapment, or other situation that would require immediate attention.
On one of the pages of the First Responders Guide, Tesla revealed a stark detail about the Cybercab, which could help personnel enter the vehicle more easily in case of an emergency.
Tesla Cybercab has one important piece that AI4 cars might need for FSD
It shows Tesla has no intention of releasing any Cybercab units that were initially proposed for ride-hailing services for the general public with any manual controls, meaning a steering wheel or pedals:
“A Cybercab equipped with steering wheel, brake pedal, and an acceleration pedal is typically an engineering or test vehicle, and operates at SAE Level 2 autonomy. Cybercab is not typically equipped with a steering wheel or acceleration and brake pedals.”
New official Cybercab documentation from Tesla:
“A Cybercab equipped with steering wheel, brake pedal, and an acceleration pedal is typically an engineering or test vehicle, and operates at SAE Level 2 autonomy. Cybercab is not typically equipped with a steering wheel or… https://t.co/P6ut1mZyzr pic.twitter.com/yq6skl9s2J
— Sawyer Merritt (@SawyerMerritt) June 27, 2026
This is a major development for those who continue to believe Tesla planned to release the Cybercab with any sort of manual controls so that passengers could take over if needed. However, when Tesla started manufacturing production versions of the Cybercab in Giga Texas earlier this year, they were spotted without a steering wheel or pedals.
It essentially confirms the company has no intentions of bringing manual controls to the car’s production versions. Some have argued that the likelihood of Tesla having something
There still are some Cybercab units out there with a steering wheel and pedals, and as Tesla said, these cars are engineering or test vehicles, which have Safety Monitors on board to help the car out of a precarious situation or emergency.
Tesla sends production Cybercab with no steering wheel, pedals to on-road testing
Tesla Phone? Not quite, but close: analyst
