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SpaceX Falcon fairing recovery vessel Mr. Steven tests out new limbs at sea
After a week or so spent installing a new and moderately ambiguous arm on the nose of Falcon fairing recovery vessel Mr. Steven, SpaceX’s recovery crew performed a number of high-speed sea trials a few miles off the shore of Port of Los Angeles, testing out something.
Just a few days later, Mr. Steven returned to the general region surrounding Catalina Island, where – by all appearances – SpaceX technicians performed the most recent Falcon fairing drop/catch test. Using a helicopter to pick up the test-dedicated fairing half from a barge, eventually dropping it from around 10,000 feet, this offers Mr. Steven a much higher volume of controlled attempts at both catching a parasailing fairing and optimizing the technology and recovery methods involved.
Mr Steven arriving back at port after some sea trials (with some new hardware near his nose). Such an elegant ship. The drop-test fairing is back in view on the dock as well. Soooooon……#spacex #mrsteven @Teslarati pic.twitter.com/qsmEy2Kk2a
— Pauline Acalin (@w00ki33) November 12, 2018
Over the last few weeks, Teslarati photographer Pauline Acalin has reliably kept up with Mr. Steven, documenting a variety of recent physical changes to the vessel. Most notably, these changes include the installation of a visible and quite curious stanchion (or arm) at the ship’s aft tip (nose). Simply due to a lack of any real information about the experiences of operating Mr. Steven and attempting to catch Falcon fairings, it’s all but impossible to know for sure what this new limb accomplishes or why it was needed in the first place.
Armed to the teeth
More clear are general visual observations and the reasonable extrapolations that can be derived from them. At the simplest level, this new limb is clearly well-reinforced, at least no less so than any of Mr. Steven’s other arms and attachment points. Aside from a basic off-the-shelf ladder for crew and technician access, the stanchion plays host to four basic swinging arms with what looks like one or maybe one and a half degrees of freedom, allowing them to pivot roughly 180 degrees along the plane of the angle they were installed at.
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- An overview of Mr. Steven on November 10th, shortly after his new arm’s cables were attached. (Pauline Acalin)
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- A good closeup of Mr. Steven’s new limb and its associated cables, cable linkages, and arm attachments. (Pauline Acalin, 11/10/18)
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- A different view of the arm-cable attachment fixtures. (Pauline Acalin)
Secured to the ends of those four simple arms are four heavy-duty coiled metal cables, themselves attached to the center of Mr. Steven’s two foremost arms (two cables per arm). Curiously, the ship’s Nov. 12 sea trials were conducted with just the bottom two cables attached to each respective arm, visible in photos of the outing. Upon returning from a Nov. 14 fairing drop-and-catch test, both upper and lower cable sets were seen attached to his aft arms. During the nearby sea trials, no clearly abnormal behavior – compared against previous trials at similar speeds and the same location – was observed, although the new metal cables were visibly taut or nearly so.
Given just how seemingly nuanced the utility of this new arm and cable combo seems to be, a few obvious conclusions and possible explanations can be drawn. Perhaps Mr. Steven experiences inconvenient arm bouncing while sailing at high speeds, particularly in high speeds, and holding his arms down serves to grease the metaphorical gears of fairing recovery. Maybe the recovery net – stretched between four large arms – is tensioned more than SpaceX fairing recovery engineers and technicians would like, partially shrinking the usable catching area by pulling each arm towards the center. Even more nuanced still, it may be the case that these new tensioning steel cables and stanchion make it easier for fairing halves to be processed after landing in Mr. Steven’s net, allowing the crew to accurately and rapidly move the fairing to an optimal section of the net.
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- (Pauline Acalin)
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- Note the duo of cables connected to the arm attachment jig. (Pauline Acalin)
More questions than answers
Regardless, none of these best-case, simple explanations for the new hardware satisfactorily mesh with the known facts surrounding Mr. Steven and Falcon fairing recovery in general. For any of the above scenarios to be true, one must essentially assume that SpaceX has already nailed down fairing recovery and catches or believes that the path to solving those problems is almost totally clear of obstacles. If not, it would feel more than a little like putting the cart before the horse (or the fairing before the net) to be optimizing Mr. Steven for operations that are – as of yet – out of reach.
If SpaceX were so close to closing the fairing recovery gap, one would generally expect Mr. Steven to attempt fairing recoveries after all true Falcon 9 launches while also performing controlled drop test catch attempts. However, no such attempt was made after the October 7 launch of SAOCOM-1A and – according to CEO Elon Musk – Mr. Steven will not be attempting to catch Falcon 9’s fairing(s) after the imminent launch of SSO-A, expected to occur sometime after Thanksgiving (later this week).
Will try again next month
— Elon Musk (@elonmusk) November 14, 2018
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Elon Musk teases expectations for Tesla’s AI6 self-driving chip
This optimistic timeline for tape-out—the stage where chip design is finalized before manufacturing—signals Tesla’s push to rapidly advance its silicon capabilities.
Tesla CEO Elon Musk is outlining expectations for the AI6 self-driving chip, which is still two generations away. Despite this, it is already in the plans of the company and its serial entrepreneur CEO, who has high expectations for it.
Musk provided fresh details on the company’s aggressive AI hardware roadmap, spotlighting the upcoming AI6 chip designed to supercharge Tesla’s self-driving tech, humanoid robots, and data center operations.
In a post on X dated March 19, Musk stated, “With some luck and acceleration using AI, we might be able to tape out AI6 in December.”
With some luck and acceleration using AI, we might be able to tape out AI6 in December
— Elon Musk (@elonmusk) March 19, 2026
This optimistic timeline for tape-out—the stage where chip design is finalized before manufacturing—signals Tesla’s push to rapidly advance its silicon capabilities.
The announcement builds on progress with the predecessor AI5. Earlier in January, Musk announced that the AI5 design was “in good shape” and “almost done,” describing it as an “existential” project for the company that demanded his personal attention on weekends.
He characterized AI5 as roughly equivalent to Nvidia’s Hopper class performance in a single system-on-chip (SoC) and Blackwell-level as a dual configuration, but at significantly lower cost and power usage.
Elon Musk is setting high expectations for Tesla AI5 and AI6 chips
Musk highlighted that AI5 “will punch far above its weight” thanks to Tesla’s co-designed AI software and hardware stack, making maximal use of every circuit. While capable of data center training tasks, it is primarily optimized for edge computing in Optimus robots and Robotaxi vehicles.
For AI6, Musk envisions substantial gains. “In the same half reticle and same process node, we think a single AI6 chip has the potential to match a dual SoC AI5,” he explained.
The company is targeting ambitious nine-month development cycles for future chips, allowing rapid iteration to AI7, AI8, and beyond. AI5/AI6 engineering remains Musk’s top time allocation at Tesla, with the CEO calling AI5 “good” and AI6 “great.”
Samsung is expected to manufacture the AI6 chips, following deals worth billions, while AI5 will leverage TSMC and Samsung production. These chips will form the backbone of Tesla’s Full Self-Driving system, enabling safer and more capable autonomy, alongside powering dexterous movements in Optimus bots and efficient inference in expanding data centers.
Tesla to discuss expansion of Samsung AI6 production plans: report
Musk has also restarted work on the Dojo 3 supercomputer project now that AI5 is progressing. Long-term plans include in-house manufacturing via the Terafab facility.
By accelerating chip development with AI tools, Tesla aims to reduce dependence on third-party GPUs and deliver high-performance, energy-efficient solutions tailored to its ecosystem. Success with AI6 could mark a major milestone in Tesla’s journey toward full autonomy and robotics leadership, though timelines remain subject to manufacturing realities.
Elon Musk
SpaceX is quietly becoming the U.S. Military’s only reliable rocket
Space Force drops ULA for SpaceX on GPS launch after Vulcan rocket anomaly investigation halts flights.
The U.S. Space Force announced today it is switching an upcoming GPS III satellite launch from United Launch Alliance’s Vulcan rocket to a SpaceX Falcon 9, a move that is as much a reflection of Vulcan’s mounting problems as it is a validation of SpaceX’s growing dominance in national security space launch. The GPS III Space Vehicle 09, originally contracted to fly on Vulcan this month, will now target a late April liftoff on Falcon 9, marking the fourth consecutive GPS III satellite the Space Force has moved to SpaceX after contracts were originally awarded to ULA.
The immediate trigger is a solid rocket motor anomaly that occurred on February 12 during Vulcan’s USSF-87 mission. Although the payloads reached orbit and ULA declared the mission successful, the company characterized the malfunction as a “significant performance anomaly” and has since paused all military launches on Vulcan pending a root cause investigation.
“With this change, we are answering the call for rapid delivery of advanced GPS capability while the Vulcan anomaly investigation continues,” said Systems Delta 81 Commander Col. Ryan Hiserote. “We are once again demonstrating our team’s flexibility and are fully committed to leverage all options available for responsive and reliable launch for the Nation.”
The broader reality is that SpaceX’s reliability record and launch cadence have made it the path of least resistance for the Pentagon, and bodes well with Elon Musk’s plans to IPO SpaceX sometime this year. Its Falcon 9 is the most flight-proven rocket in history, and the Space Force’s Rapid Response Trailblazer program was specifically designed to enable exactly this kind of provider swap for GPS missions, and effectively building SpaceX’s flexibility into the national security launch architecture by design.
For ULA, the stakes are existential. The company entered 2026 with aspirations of finally turning a corner after years of Vulcan delays, with interim CEO John Elbon pointing to a backlog of over 80 missions as reason for optimism. Meanwhile, SpaceX’s contracts with the Space Force have given it a formal pathway to take on even more national security launches going forward.
The significance of today’s announcement extends beyond one satellite swap. It reinforces that America’s most critical space infrastructure, including GPS, missile warning, and beyond, is increasingly dependent on a single commercial provider.
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Tesla Full Self-Driving gets huge breakthrough on European expansion
All documentation for UN R-171 approval and Article 39 exemptions has been submitted, with RDW now conducting its internal review. Approval in the Netherlands is expected on April 10, shifted from the original March 20 target, following 18 months of rigorous collaboration.
Tesla Full Self-Driving has gotten a huge breakthrough as the company is still planning big things for its European expansion, hoping to bring the impressive platform into the continent after years of attempts.
Tesla Europe has announced a major breakthrough: the company has officially completed the final vehicle testing phase for Full Self-Driving (Supervised) in partnership with the Dutch vehicle authority RDW.
All documentation for UN R-171 approval and Article 39 exemptions has been submitted, with RDW now conducting its internal review. Approval in the Netherlands is expected on April 10, shifted from the original March 20 target, following 18 months of rigorous collaboration.
Together with RDW, we have officially completed the final vehicle testing phase for Full Self-Driving (Supervised) and have submitted all documentation required for the UN R-171 approval + Article 39 exemptions. The RDW team is now reviewing the documentation and test results…
— Tesla Europe, Middle East & Africa (@teslaeurope) March 20, 2026
The process has been exhaustive. Tesla said it has logged more than 1.6 million kilometers of FSD (Supervised) testing on European roads, conducted over 13,000 customer ride-alongs, executed 4,500+ track test scenarios, produced thousands of pages of documentation covering 400+ compliance requirements, and completed dozens of independent safety studies.
The company expressed pride in the partnership and anticipation of bringing the feature to “patient EU customers” soon after approval.
Europe’s regulatory landscape has presented steep challenges for Tesla’s advanced driver-assistance systems. The EU enforces some of the world’s strictest safety standards under the United Nations Economic Commission for Europe framework, particularly UN Regulation 171 on Driver Control Assistance Systems.
Unlike the more permissive U.S. environment, European rules historically limited system-initiated maneuvers, required constant driver supervision, and demanded country-by-country or bloc-wide exemptions. Tesla faced repeated delays, with initial February 2026 targets pushed back amid RDW’s insistence that safety, not public or corporate pressure, would govern timelines.
Tesla Europe builds momentum with expanding FSD demos and regional launches
A former Tesla executive warned in 2024 that certain regulatory elements could slip to 2028, highlighting bureaucratic hurdles, extensive audits, and the need for harmonized data privacy and liability frameworks across fragmented member states.
Yet progress is accelerating. Amendments to UN R-171 adopted in 2025 now permit hands-free highway lane changes and other automated features, clearing technical barriers. Once the Netherlands grants national approval, mutual recognition allows other EU countries to adopt it immediately, potentially leading to an EU-wide rollout by summer 2026.
This European breakthrough is part of Tesla’s broader push into foreign markets. Full Self-Driving (Supervised) is already live in the United States and expanding rapidly.
In China, where partial approvals exist, CEO Elon Musk has targeted full rollout around the same February–March 2026 window, despite lingering data-security reviews.
Additional markets, including the UAE, are slated for early 2026 launches. These expansions are critical as Tesla seeks to monetize software amid softening EV demand globally.
For European Tesla owners, the wait appears nearly over. Approval would unlock advanced autonomy features that have long been available elsewhere, marking a pivotal step in Tesla’s global autonomy ambitions and reinforcing its commitment to navigating complex international regulations.
Elon Musk teases expectations for Tesla’s AI6 self-driving chip
SpaceX is quietly becoming the U.S. Military’s only reliable rocket
