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SpaceX Starship rocket set to reach full height for the second time ever
A SpaceX Starship prototype is on track to become the first to reach its full, operational height in a permanent fashion, following in the footsteps of a much earlier prototype that had its nose section temporarily installed last year.
Known as Starship Mk1, that prototype served as more of a learning experience, pathfinder, and mockup over the ~8 months it took to build it and the few weeks it took to destroy it. While its conical nose section was partially outfitted with smaller ‘header’ propellant tanks, it was never fully installed, with SpaceX only temporarily stacking it on top of Starship Mk1’s tank section to serve as the centerpiece of CEO Elon Musk’s October 2019 update event. Mk1’s nosecone was removed shortly after the event was over, while the rocket’s more important tank section was rolled to a nearby launch pad for testing.
More than six months later, Starship SN5 appears to be firmly on its way to becoming the first of SpaceX’s next-generation launch vehicle prototypes to have a (mostly) functional nose section permanently installed. If that ends up being the case, SpaceX’s fifth full-scale Starship prototype may become the first to have multiple Raptor engines installed and the first to perform a high-altitude flight test. Of course, that will depend quite heavily on the fate of Starship SN4, currently trapped in limbo after a May 19th static fire caused SpaceX to partially lose control of the rocket.
While not immediately clear, comments made by CEO Elon Musk and SpaceX officials suggested that the company was aiming to perform low-altitude hops with Starship SN4 and graduate to high-altitude testing with the next prototype off the assembly line (SN5). With a development program as agile as SpaceX’s Starship effort, however, plans are liable to change at almost any moment.
On May 17th, however, it became clear that – at least for the time being – SpaceX fully intends for Starship SN5 to become the first serially-produced ship to have a nosecone installed. On that Sunday, a brand new steel nose section – the fourth built by SpaceX in the last few months – was rolled out of a massive factory tent, revealing labels that rather unambiguously read “SN5”.
SN5 refers to Starship serial number 5, the fifth full-scale rocket prototype overall and fourth built since the start of 2020. Over the last six or so months, SpaceX has dramatically expanded its production footprint in South Texas, reaching a point now where it’s churning out a rough Starship prototype every month, on average. Starship SN5 is no different, with its tank section largely completed as of May 15th, give or take a day or two.
Now, on May 19th, a new collection of five stacked steel rings appeared alongside Starship SN5’s largely completed tank and engine section. Combined with the new nosecone labeled “SN5”, it’s now readily and unequivocally apparent that the prototype is probably a matter of days away from having a nosecone installed. Unless SpaceX has adopted different methods for Starship SN6 production and assembly, a stack of five steel rings – lacking any sign of a tank dome welded inside it – will serve as the base that SN5’s nosecone can be stacked on top of. Once stacked with its nose section, Starship SN5 will measure some 50m (~165 ft) tall – at least several meters taller than a Falcon 9 booster.
The nosecone itself is also quite interesting, featuring two sets of four mysterious thruster nozzles, signs of interior components and reinforcements, and two recessed struts presumably meant to attach to Starship’s forward flaps.
While exciting, there is certainly still a chance that Starship SN4 – trapped at the launch pad – will have to be destroyed or will be unsalvageable even if SpaceX is able to finally access and safe the prototype. If so, Starship SN5 will likely take its place, performing a Raptor static fire, a ~150m (~500 ft) hop test, and an additional ~3 km (~1.9 mi) flight test before potentially moving on to triple Raptor operations and high-altitude flights. Stay tuned for updates on SN4’s fate and SN5’s production status.
Elon Musk
Elon Musk’s xAI wins permit for power plant supporting AI data centers
The development was reported by CNBC, citing confirmation from the Mississippi Department of Environmental Quality (MDEQ).
Mississippi regulators have approved a permit allowing Elon Musk’s artificial intelligence company xAI to construct a natural gas power plant in Southaven. The facility is expected to support the company’s expanding AI infrastructure tied to its Colossus data center operations near Memphis.
The development was reported by CNBC, citing confirmation from the Mississippi Department of Environmental Quality (MDEQ).
According to the report, regulators “voted to approve the permit” of xAI subsidiary MZX Tech LLC to construct a power plant featuring 41 natural gas-burning turbines “after careful consideration of all public comments and community concerns.”
The Mississippi Department of Environmental Quality stated that the permit followed a regulatory review process that included public comments and community input. Jaricus Whitlock, air division chief for the MDEQ, stated that the project met all applicable environmental standards.
“The proposed PSD permit in front of the board today not only meets all state and federal permitting regulations, but goes above and beyond what is required by law. MDEQ and the EPA agree that not a single person around our facilities will be exposed to unhealthy levels of air pollution,” Whitlock stated.
The planned facility will help provide electricity for xAI’s AI computing infrastructure in the Memphis region.
The Southaven project forms part of xAI’s efforts to scale computing capacity for its artificial intelligence systems.
The company currently operates two major data centers in Memphis, known as Colossus 1 and Colossus 2, which provide computing power for xAI’s Grok AI models. xAI is also planning to build another large data center in Southaven called Macrohardrr, which would be located in a warehouse previously used by GXO Logistics.
Large-scale AI training requires substantial computing power and electricity, prompting technology companies to develop dedicated energy infrastructure for their data centers.
SpaceX President Gwynne Shotwell previously stated that xAI plans to develop 1.2 gigawatts of power capacity for its Memphis-area AI supercomputer site as part of the federal government’s Ratepayer Protection Pledge. The commitment was announced during an event with United States President Donald Trump.
“As part of today’s commitment, we will take extensive additional steps to continue to reduce the costs of electricity for our neighbors. xAI will therefore commit to develop 1.2 GW of power as our supercomputer’s primary power source. That will be for every additional data center as well. We will expand what is already the largest global Megapack power installation in the world,” Shotwell said.
“The installation will provide enough backup power to power the city of Memphis, and more than sufficient energy to power the town of Southaven, Mississippi where the data center resides. We will build new substations and invest in electrical infrastructure to provide stability to the area’s grid.”
Elon Musk
Tesla China teases Optimus robot’s human-looking next-gen hands
The image was shared by Tesla AI’s account on Weibo and later reposted by Tesla community members on X.
A new teaser shared by Tesla’s China team appears to show a pair of unusually human-like hands for Optimus.
The image was shared by Tesla AI’s account on Weibo and later reposted by Tesla community members on X.
As could be seen in the teaser image, the new version of Optimus’ hands features proportions and finger structures that look strikingly similar to those of a human hand. Their appearance suggests that they might have dexterity approaching that of a human hand.
If the image reflects a new generation of Optimus’ hands, it could indicate Tesla is continuing to refine one of the most critical components of its humanoid robot.
Hands are widely viewed as one of the most difficult engineering challenges in robotics. For Optimus to perform complex real-world work, from manufacturing tasks to household activities, its hands would need to be the best in the industry.
Elon Musk has repeatedly described Optimus as Tesla’s most important long-term product. In posts on social media platform X, Musk has stated that Optimus could eventually become the first real-world Von Neumann machine.
In theory, a Von Neumann machine is a self-replicating system capable of building copies of itself using available materials. The concept was originally proposed by mathematician John von Neumann in the mid-20th century.
“Optimus will be the first Von Neumann machine, capable of building civilization by itself on any viable planet,” Musk wrote in a post on X.
If Optimus is expected to carry out complex work autonomously in the future, high levels of dexterity will likely be essential. This makes the development of advanced robotic hands a key step towards Musk’s long-term expectations for the product.
News
Tesla Cybercab ramps Robotaxi public street testing as vehicle enters mass production queue
Recent sightings on public roads and growing fleet activity at Giga Texas signal Tesla’s accelerating push toward the Cybercab’s commercial launch.
Tesla Cybercab is being spotted with increasing frequency both on public roads and across the grounds of Gigafactory Texas, suggesting that the company’s road testing and validation program is ramping meaningfully ahead of mass production.
A total of 25 Cybercab units were recently observed across three separate locations at Giga Texas by drone observer Joe Tegtmeyer — with 14 metallic gold units parked in a tight formation outside the factory exit, nine more at the crash testing facility undergoing structural and safety validations, and two additional units at the west end-of-line area for final checks.
The activity on public roads is just as telling. The Cybercab was spotted testing on public roads for the first time last October, near Tesla’s Engineering Headquarters in Los Altos, California, marking a significant development in the vehicle’s progression toward commercial readiness. As expected at that early stage, a safety driver was present in the seat.
Since then, sightings have only become more frequent. Community observers on X have posted fresh footage of Cybercabs navigating public streets in Silicon Valley, with each new clip adding to a growing body of evidence that Tesla’s validation efforts are well underway. The production backdrop supports the momentum. Tesla’s production line at Giga Texas moved into a higher volume early in March, representing what observers are calling the largest single-day grouping of Cybercabs seen to date.
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- Tesla Cybercab spotted in San Jose, CA testing on public roads with Robotaxi validation equipment [Credit: Nic Cruz Patane via X]
![Tesla Cybercab spotted testing on public roads in Los Gatos, CA - March 10, 2026 [Credit: Osmad Sarood via X]](https://www.teslarati.com/wp-content/uploads/2026/03/tesla-cybercab-public-road-testing-823x1024.jpg)
Tesla Cybercab spotted testing on public roads in Los Gatos, CA – March 10, 2026 [Credit: Osman Sarood via X]
Tesla ramps Cybercab test manufacturing ahead of mass production
Musk has also stated that Tesla is aiming for at least 2 million Cybercab units per year across more than one factory, with a potential ceiling of 4 million annually.
With testing activity on public roads accelerating and factory output visibly increasing week over week, the coming months at Giga Texas are set to be pivotal in determining how quickly Tesla can bring the Cybercab from validation to volume.
Elon Musk’s xAI wins permit for power plant supporting AI data centers
Tesla China teases Optimus robot’s human-looking next-gen hands
