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SpaceX’s upgraded Starship gets frosty during cryogenic proof test

Starship SN15 appears to be well on its way to completing a cryogenic proof test, hopefully paving the way for a static fire later this week. (NASASpaceflight)

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Update: SpaceX is well into Starship SN15’s first cryogenic proof test and is in the process of loading the upgraded steel rocket with hundreds of tons of supercool liquid nitrogen (LN2).

As a result, the 50m (165 ft) tall spacecraft and upper stage prototype has developed a coating of frost as its extremely cold cargo quite literally freezes the humid South Texas air onto its steel skin. Stay tuned for updates on the performance of Starship SN15 during its first ‘cryo proof’ and what that means for engine installation and its next big test – a triple-Raptor static fire.

SpaceX has cleared its suborbital South Texas launch pad of all personnel, clearing the way for the Starship serial number 15 (SN15) to kick off the first in a series of big tests.

Outfitted with “hundreds” of upgrades relative to late full-size predecessors SN8, SN9, SN10, and SN11, there’s a chance that SN15 holds the key to SpaceX’s first completely successful high-altitude Starship launch and landing.

Though Starship SN10 managed to land in one piece last month and both it and its three siblings successfully reached nominal 10-12.5 km (6-8 mi) apogees, averaged more than six minutes of controlled flight, and restarted at least one of three Raptor engines without issue, SN10 explodes minutes after touchdown and the other ships suffered various failures of their own 10-30 seconds before landing. At least one vehicle loss (Starship SN9) can be blamed on the failure of one of two Raptor engines to properly ignite.

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Starship SN8 made it seconds away from an intact touchdown on the first try before an issue with its advanced pressurization system starved its Raptor engines of fuel. Starship SN10 landed hard – partially leading to its demise – because the quick-fix SpaceX implemented to deal with the pressurization issues SN8 surfaced caused Raptor engines to ingest helium, dramatically lowering their thrust and performance. CEO Elon Musk believes SN11’s even earlier demise was caused by a high-pressure methane leak on one Raptor engine that destroyed avionics and led to a hard-start and violent explosion during landing burn ignition.

While many – if not most – of Starship SN15’s myriad upgrades likely began before most of the SN8-SN11 failure modes were uncovered, it’s not unlikely that SpaceX was already aware of potential weak points and working to fix them. The company’s philosophy largely matches agile development popular in software industries – namely the development of a minimum viable product, followed by a cycle of iterative testing and refinement until a given product is reliably achieving all of its foundational goals.

Now, it’s up to Starship SN15 (as well as SN16, SN17, SN18, and possibly SN19) to carry the torch forward and demonstrate clear progress towards the goal of fielding a reliable, reusable, building-sized spacecraft and upper stage. To do that, SN15 must first act as a pathfinder for those upgrades, beginning with qualification tests on the ground.

The first of those – likely a cryogenic proof test with liquid nitrogen – is scheduled as early as today, sometime between now and 8pm CDT (UTC-5). Stay tuned for updates as Starship SN15 (hopefully) gets frosty for the first time.

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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The truth about Tesla ‘Mad Max’ mode from an actual user

Some people might see “Mad Max” as an extension of their daily driving.

For me, I did not see it that way. I saw it as a useful tool for certain situations, but it was certainly not something I could compare to my personal driving style.

But that does not mean that it’s wrong.

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Credit: Teslarati

There have been many headlines about Tesla’s new “Mad Max” mode, but many of those writing about the “dangerous” and “controversial” mode have probably never used it.

As a writer, I write about topics I do not have firsthand experience with, but the job requires me to take a fair stance and report what is known. The problem is the nature of driving and driving modes, specifically, is subjective.

Some people might see “Mad Max” as an extension of their daily driving.

For me, I did not see it that way. I saw it as a useful tool for certain situations, but it was certainly not something I could compare to my personal driving style.

But that does not mean that it’s wrong.

NHTSA Probes Tesla Over “Mad Max”

Last week, the NHTSA launched a bit of a probe into Mad Max mode, requesting additional information on the Speed Profile and reiterating that the driver of the car is still required to be in ultimate control.

Tesla ‘Mad Max’ gets its first bit of regulatory attention

It’s important to keep the latter portion of that sentence in mind for the true thesis of this piece.

Now, it is no surprise to me that Mad Max garnered attention from regulatory agencies, as it is definitely a more spirited driving profile than the others.

Is Mad Max That Big of a Deal?

Regulatory agencies are responsible for keeping people safe, and it is important to note that their control is somewhat necessary. However, this type of drive mode is optional, requires the driver’s attention, and should be used responsibly for safe travel.

Playing Devil’s Advocate, how is Mad Max any different than the performance modes that some sports cars have? Because they require the driver to operate fully, and they are not semi-autonomous like Tesla can offer with Mad Max in Full Self-Driving (Supervised), are they safer?

The argument here really comes down to whether FSD is being used responsibly and correctly; any accelerated drive mode becomes more of a risk if the vehicle operator is not paying attention. This applies to any car company or drive mode they choose to use on their cars.

My Personal Experience with Mad Max

I have used Mad Max probably ten times since it rolled out to Early Access Program (EAP) members a few weeks ago.

I’ll admit: it did a lot of things I would never do driving a car manually. It passed people on the right. It was the fastest vehicle on the interstate, at least until I crossed into Maryland. Then, it seemed to be just another car on the road.

It drove quickly, and not so fast that I felt concerned for my safety, which I never feared for, but fast enough that, at certain points, I was concerned that a cop would pull me over. I never encountered that scenario, but I wouldn’t be surprised if it resulted in some tickets.

With that being said, I don’t particularly think I’d use Mad Max in more than a handful of applications: driving the Baltimore Beltway would be one instance, navigating traffic in Baltimore, Philadelphia, or Pittsburgh during heavy traffic, or cruising on I-95, where cars routinely are going 100 MPH, much faster than Mad Max would ever travel.

Is it too quick for me in residential settings? For me, yes. Is it faster than every human driving on those roads? Absolutely not. In my experience, it is quicker than some, slower than others, just like any other Speed Mode Tesla offers, even Sloth, which refuses to go over the posted speed limit.

I think it’s wrong to sit here and act as if Mad Max is some incredibly dangerous and life-threatening hazard. If a driver is uncomfortable with the maneuvers or speed, they do not have to use it. However, it is no different from how many other cars travel on the road; it is far from an anomaly.

Tesla FSD’s new Mad Max mode is getting rave reviews from users

With that being said, it will be interesting to see if the NHTSA does anything about Mad Max, whether it will require Tesla to “nerf” the Speed Profile, or remove it altogether. It’s also important to note that this is my personal experience with Mad Max, and what I’ve experienced might differ from others’.

I would love to hear your thoughts on how Mad Max has driven for you, or your impressions of it.

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Tesla prepares for full-throttle manufacturing of major product

Tesla has the second quarter of 2026 as its projected start date for Cybercab production. It also plans to launch Semi and Megapack 3 for “volume production” starting next year, which will also be two major contributors to the company.

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(Credit: Tesla North America | X)

Tesla is preparing for a full-throttle manufacturing effort of potentially its biggest product in company history, job postings on the company’s website show.

In preparation for its foray into fully autonomous travel, Tesla is gearing up for Cybercab manufacturing with 30 job postings, ranging from repair technicians to manufacturing specialists.

Elon Musk sets definitive Tesla Cybercab production date and puts a rumor to rest

The jobs are all located in Austin, Texas, where the company’s Gigafactory Texas facility is located. This is where Cybercab production is going to take place.

Tesla has made major strides in the Cybercab project over the past few months, including launching the vehicle on the Fremont Test Track in California and conducting crash testing at Gigafactory Texas.

All of these indicate the company is preparing for an imminent production effort of the vehicle, which, as Elon Musk said during last week’s Earnings Call, will be void of a steering wheel or pedals.

Tesla has the second quarter of 2026 as its projected start date for Cybercab production. It also plans to launch Semi and Megapack 3 for “volume production” starting next year, which will also be two major contributors to the company.

Musk spoke in great detail during the Earnings Call last week about Cybercab’s potential to change the grand picture of the automotive market, comparing other vehicles in the Tesla lineup to “a little bit of the horse-carriage thing.”

He said:

“That’s really a vehicle that’s optimized for full autonomy. It, in fact, does not have a steering wheel or pedals and is really an enduring optimization on minimizing cost per mile for fully considered cost per mile of operation. For our other vehicles, they still have a little bit of the horse carriage thing going on where, obviously, if you’ve got steering wheels and pedals and you’re designing a car that people might want to go very direct past acceleration and tight cornering, like high-performance cars, then you’re going to design a different car than one that is optimized for a comfortable ride and doesn’t expect to go past sort of 85 or 90 miles an hour.”

Cybercab production is imminent, given the job postings and the company’s proposed timeline for manufacturing to begin. Of course, there is always the potential that Tesla is late to the party, as it has been with other projects.

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xAI’s Grokipedia goes live, gets praise from Wikipedia co-founder

xAI’s latest creation, Grokipedia, has gone live, and even if it’s only at Version 0.1, it is already receiving positive reviews from some users.

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Credit: xAI/X

xAI’s latest creation, Grokipedia, has gone live, and even if it’s only at Version 0.1, it is already receiving positive reviews from some users. These include Larry Sanger, the co-founder of Wikipedia, the world’s largest online encyclopedia, which has become quite controversial in recent years over accusations of bias.

Grokipedia launches

Immediately after Grokipedia went live, the AI-powered Wikipedia alternative was tested by numerous users. So far, a good number of testers have responded positively to the online encyclopedia, with many observing that Grokipedia does tend to be more neutral than Wikipedia. This was particularly evident in controversial topics, from alternative medicine to events like Gamergate.

Among these users was Larry Sanger, who noted that while Grokipedia still has a lot of areas of improvement, it is already very promising. “My initial impression, looking at my own article and poking around here and there, is that Grokipedia is very OK. The jury’s still out as to whether it’s actually better than Wikipedia. But at this point I would have to say “maybe!” He wrote in a post on X. 

Musk responded to Sanger’s comments, stating that the Wikipedia co-founder’s observations are “accurate.” The xAI founder also noted in a separate X post that even in its V0.1 form, Grokipedia is already better than Wikipedia. 

Why Grokipedia exists 

During an interview on the Tucker Carlson Show, Sanger point out that Wikipedia has become a far cry from his initial vision for the online encyclopedia, and a lot of this was because of the its “Reliable sources/Perennial sources” page, which categories publications and sources into tiers of credibility. Sanger noted that the list leaned heavily left, with conservative publications getting effectively blacklisted in favor of their more liberal.

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Musk responded to Sanger’s comments by stating that Grokipedia will be created as a step towards xAI’s broader goal of “understanding the Universe.” He added that Grokipedia, which will use xAI’s Grok, would provide broader sourcing and a freer exchange of information compared to Wikipedia’s current system. 

One month after Elon Musk’s comments, Grokipedia has gone live in its V0.1 form.

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