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SpaceX Starship holds up under pressure, lines up Raptor engine test fire

Starship SN11 has (mostly) soared through the first two of three major tests standing between the rocket and a launch attempt. (NASASpaceflight - bocachicagal)

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After a few false starts and some minor delays, SpaceX’s 11th Starship prototype (SN11) has made it through two of the three major tests standing between it and liftoff.

SpaceX rolled Starship SN11 from the factory to the launch pad on March 8th, just five days after Starship SN10 briefly became the first prototype of its kind to land in one piece. One or two issues with Raptor’s final landing burn caused SN10 to touch down faster than expected and eventually led to the rocket’s explosive demise around 15 minutes later. Still, the test flight was an almost unequivocal success and seemingly left SpaceX with more than enough confidence to speed through preparations for the next flight test.

Heading into the next day, SpaceX had hoped to kick off cryogenic proof testing but Starship SN11 required a bit more attention than expected and unknown bugs ultimately meant that only an ambient-temperature pressure test could be completed by the end of the test window. Those issues appeared to persist through the end of March 10th, preventing any kind of proof test attempt.

On March 11th, Starship SN11 was able to take its first real stab at a cryo proof and was loaded with liquid nitrogen (LN2), a cryogenic fluid with a density and temperature similar to Starship’s liquid oxygen and methane propellant but without the risk of a catastrophic fire or explosion. Over the course of three or so hours, SpaceX didn’t appear to fully load SN11 with LN2, a possible sign of a technical bug that could just as easily be an intentional part of the test design.

Oddly, parts of the evenings testing were unlike past cryo proofs and there’s a slight chance that the activity was actually a static fire attempt scrubbed well before ignition, though it’s impossible to say without official confirmation.

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Otherwise, the most notable part of the cryo proof was a test of Starship SN11’s attitude control system (ACS) that involved firing each of the ship’s several cold-gas nitrogen thrusters at least 5-10 times for a total of several dozen bursts. The current generation of Starships mainly use those thrusters to augment their flaps and perform flip maneuvers during suborbital launch and landing attempts, while early orbital-class prototypes may use the same thruster system to control their attitude in the vacuum of space.

If last night’s cryo proof test was successful and gave SpaceX the data it needs to give SN11 a good bill of health, the Starship could potentially attempt its first Raptor engine static fire as early Friday, March 12th. Historically, SpaceX has never static fired a Starship prototype less than 12 days after its launch site arrival, meaning that a static fire tomorrow would smash the previous record by a factor of three. As such, it’s more likely that SN11 will need a day or two and be ready for a static fire attempt as early as Monday, March 15th.

Either way, Starship SN11 is undeniably on a faster track than any of its three-engine predecessors and a clean static fire on Friday or Monday would leave a launch next week – SpaceX’s current target– well within reach.

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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Tesla is releasing a modified version of FSD v14 for Hardware 3 owners: here’s when

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Tesla is releasing a modified version of the Full Self-Driving (Supervised) version 14 suite for Hardware 3 owners, the company announced during the Q3 Earnings Call earlier this week.

Perhaps one of the most pertinent issues for Tesla owners right now is that those owners who have purchased vehicles before 2024 have been stuck with an older version of the company’s self-driving chip, known as Hardware 3 or AI3.

Owners with Hardware 3 vehicles have been stuck in a strange limbo for some time, wondering whether they should wait for the company’s official plans to upgrade them to the newer AI4 or even the to-be-released AI5 chip, or if they should purchase a new vehicle altogether. The upgrade would give them access to the latest Full Self-Driving suite releases, but it would likely cost a good bit of money.

Tesla (TSLA) Q3 2025 earnings: Wall Street’s reactions

For a while, these owners have been waiting for Tesla to give some sort of update on its plans, as the company has, in a way, danced around the issue by stating it would “take care” of those owners. The problem is, the definition of “take care” is subjective, and nobody knows if that means an upgrade or a free Tesla t-shirt.

Nevertheless, many owners finally got a tad bit more color earlier this week during the Earnings Call, when company executives finally outlined the beginning of a concrete plan to “take care” of HW3 vehicles.

Chief Financial Officer Vaibhav Taneja gave the first bit of the answer, as it is a personal issue to him. He also said that the vehicle he drives is a HW3 car, so it is impacted by the lack of upgrades.

He said:

“We have not completely given up on HW3. These customers are very important. They are early adopters. We will definitely take care of you guys.”

However, Tesla’s Head of AI, Ashok Elluswamy, gave some additional color, revealing that Tesla plans to launch v14 Lite for HW3 cars, and it will be released in Q2 of next year, tentatively:

“Once the v14 release series is fully done, we are planning on working on a v14 Lite version for hardware three. Probably expected in Q2 next year.”

This is somewhat of an answer, but some owners have already voiced discontent with this solution because HW3 will more than likely not be capable of what will be the “feature complete” version of FSD.

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Jim Cramer chimes in on Tesla CEO Elon Musk’s pay package

“Don’t be small-minded: Tesla is about robots, Full Self-Driving, the future. Give him his package.”

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Credit: The Street

Investor and host of Mad Money on MSNBC , Jim Cramer, has chimed in on Tesla CEO Elon Musk’s pay package and whether it should be rewarded to the frontman or not.

Cramer has drawn a lot of attention regarding his sentiments on Tesla, as investors have routinely given him a pretty hard time over what he’s said about the company.

For the past few years, we have covered his comments on Tesla when he has something to say, mostly because his opinion on the stock seems to change pretty frequently; at a minimum, he has something different to say about it every few months.

However, Cramer knows Musk’s value to Tesla, and said on Thursday that he believes the CEO deserves his pay package:

“Don’t be small-minded: Tesla is about robots, Full Self-Driving, the future. Give him his package.”

Cramer’s comments come just one day after Tesla’s Q3 2025 Earnings Call, where Musk took several opportunities to call out the importance of the pay package and how it could impact the company’s future — with or without him.

Musk said at one point that he would not feel comfortable continuing to develop the company’s massive fleet of Optimus bots without having appropriate control of the company from a voting perspective.

He said he does not want so much power that if he “were to lose his mind,” he could not be removed. However, he does feel he needs to be protected from “activist shareholders,” or “corporate terrorists” like proxy groups Institutional Shareholder Services (ISS) and Glass Lewis:

“My fundamental concern with regard to how much voting control I have at Tesla is if I go ahead and build this enormous robot army, can I just be ousted at some point in the future? …It’s just, if we build this robot army, do I have at least a strong influence over that robot army, not current control, but a strong influence? That’s what it comes down to in a nutshell. I don’t feel comfortable wielding that robot army if I don’t have at least a strong influence.”

At the end of the call, Musk said:

“Like I said, I just don’t feel comfortable building a robot army here and then being ousted because of some asinine recommendations from ISS and Glass Lewis, who have no freaking clue. I mean, those guys are corporate terrorists.”

Cramer is one of many who realize Musk’s importance to Tesla, and how the company would likely lack the guidance and prowess it does without his planning and drive. However, Tesla shareholders will have the ultimate say on November 6 when they vote on Musk’s compensation plan.

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Tesla is stumped on how to engineer this Optimus part, but they’re close

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Credit: Tesla

Tesla has been stumped on how to engineer one crucial part of the Optimus bot, but CEO Elon Musk says the company is “on the cusp” of achieving something great with the project.

During the Q3 2025 Earnings Call, Tesla CEO Elon Musk revealed the company is moving closer to a major breakthrough with the Optimus project, and said they are “on the cusp of something really tremendous.”

However, it seems there is one specific portion of the robot that has truly stumped engineers at the company: the hand, fingers, and forearm.

Musk went into great detail about how incredibly complex and amazing the human hand is, highlighting its dexterity and capability, as its ability to perform a wide variety of tasks is especially impressive:

“I don’t want to downplay the difficulty, but it’s an incredibly difficult thing, especially to create a hand that is as dexterous and capable as the human hand, which is incredible. The human hand is an incredible thing. The more you study the human hand, the more incredible you realize it is, and why you need four fingers and a thumb, why the fingers have certain degrees of freedom, why the various muscles are of different strengths, and fingers are of different lengths. It turns out that those are all there for a reason.”

It’s been pretty apparent that Tesla has made massive strides in the Optimus project, especially considering it has been able to walk down hills, learn things like Kung Fu, and even perform service tasks like serving food and drinks.

However, a recent look at a Gen 2.5 version of Optimus posted by Marc Benioff, the CEO of Salesforce, showed that Tesla was likely using mannequin hands until it developed something that was both useful and aesthetically pleasing:

Musk continued on the call last night that the Tesla team was confronted with an “incredibly difficult” challenge from an engineering perspective, and the hands and actuators for that specific part were tough to figure out:

“Making the hand and forearm, because most of the actuators, just like the human hand, the muscles that control your hand are actually primarily in your forearm. The Optimus hand and forearm is an incredibly difficult engineering challenge. I’d say it’s more difficult than the rest of the robot from an electromechanical standpoint. The forearm and hand are more difficult than the entire rest of the robot. But really, in order to have a useful generalized robot, you do need an incredible hand.”

The CEO continued that developing a useful and effective robot was “crucial to the future of the company,” and that he works with Optimus’s design team each Friday night.

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