News
SpaceX Starship briefly becomes largest rocket in history – now what’s next?
On August 6th, after a great deal of anticipation, SpaceX stacked a Starship on top of a Super Heavy booster for the first time ever, very briefly assembling the largest rocket in history.
However, barely an hour after the two stages were integrated and (presumably) latched together, SpaceX lifted Starship (S20) off the booster, returned it to its transport stand, and rolled the ship back to the build site later that day. Though an extreme sensitivity to wind conditions has delayed the procedure, Super Heavy Booster 4 (B4) also appears to be on track to be removed from the orbital launch mount and sent either back to the factory or to a suborbital launch mount that’s been modified for booster testing.
For those that followed the process closely in the days and weeks prior, the fact that Starship’s first full assembly was just a fit check (and, really, more like 50:50 between fit check and photo op) came as no surprise. In the lead-up, it became clear through several reports that CEO Elon Musk had challenged SpaceX to stack Ship 20 and Booster 4 by August 5th and flown in several hundred employees normally stationed elsewhere to accomplish the feat.
Ignoring weather delays that prevented stacking on August 5th, SpaceX met Musk’s challenge in all but the literal sense, assembling the world’s largest rocket into one integrated stack for the first time ever. Even more significantly, despite the fact that SpaceX could have easily decided to stack two not-for-flight prototypes to sort of achieve the same feat, both stages – Ship 20 and Booster 4 – involved in the August 6th milestone are nominally destined for flight.
Barring surprises, the same exact pair is scheduled to support Starship’s first orbital test flight as early as this year. Before they can be cleared for flight, however, a great deal of work must still be completed – work that in some cases is unprecedented in the history of the Starship program.
Not long after the stacking milestone, Musk himself sketched out a few of the tasks still in front of the rocket. Namely, Musk says that SpaceX must still complete Starship S20’s partially-finished heat shield, install some form of heat shield(s) to protect Super Heavy Booster 4’s 29 naked Raptor engines; finish installing, plumbing, and activating 4-7 massive custom propellant storage tanks; and assemble, install, and activate a giant mechanical umbilical arm on the launch tower to fuel and power Starship.
All are undoubtedly crucial and Starship is unlikely to launch before any of them are more or less complete. However, the booster and ship themselves are arguably far more of a pressure point. Before they can be deemed ready for flight, both the ship and booster must complete unprecedented test campaigns on the ground.
Ship 20 will need to complete cryogenic proof testing to verify that the first Starship with six Raptor engine mounts is structurally sound. SpaceX has already modified one of its two suborbital Starship launch mounts for that purpose. Once cryo proof and hydraulic ram testing is complete, those six rams will likely be removed and six Raptor engines will be installed in their place, potentially setting up Ship 20 to become the first Starship prototype to static fire six engines – and any number of Raptor Vacuum engines.
Super Heavy Booster 4 will be faced with an even more ambitious static fire test campaign as SpaceX likely gradually installs more and more engines. Depending on how focused SpaceX is on speed over thoroughness, that process could involve gradually adding 2-5 engines after every static fire or could result in SpaceX starting with 4-9 engines and then immediately jumping from 9 to a full 29-Raptor static fire.
Only after completing those crucial qualification tests is SpaceX likely to stack Ship 20 and Booster 4 for a second time and enter the first true full-stack Starship launch flow – hopefully culminating in the first orbital launch attempt later this year, but only as soon as the FAA completes an environmental review and approves the rocket’s launch license. Technically, FAA approval could come next month or it could take the agency a year or more – it’s almost impossible to predict without official information. However, given SpaceX’s track record with Starship prototypes and Booster B3, it’s likely that a flightworthy Starship and Super Heavy will be stacked on the pad and ready to launch just a few months from now.
Stay tuned for updates on that potential standoff in the making and Starship’s progress towards its first orbital test flight.
News
Swedish unions consider police report over Tesla Megapack Supercharger
The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm.
Swedish labor unions are considering whether to file a police report related to a newly opened Tesla Megapack Supercharger near Stockholm, citing questions about how electricity is supplied to the site. The matter has also been referred to Sweden’s energy regulator.
Tesla Megapack Supercharger
The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm. Unlike traditional charging stations, the site is powered by an on-site Megapack battery rather than a direct grid connection. Typical grid connections for Tesla charging sites in Sweden have seen challenges for nearly two years due to union blockades.
Swedish labor union IF Metall has submitted a report to the Energy Market Inspectorate, asking the authority to assess whether electricity supplied to the battery system meets regulatory requirements, as noted in a report from Dagens Arbete (DA). The Tesla Megapack on the site is charged using electricity supplied by a local company, though the specific provider has not been publicly identified.
Peter Lydell, an ombudsman at IF Metall, issued a comment about the Tesla Megapack Supercharger. “The legislation states that only companies that engage in electricity trading may supply electricity to other parties. You may not supply electricity without a permit, then you are engaging in illegal electricity trading. That is why we have reported this… This is about a company that helps Tesla circumvent the conflict measures that exist. It is clear that it is troublesome and it can also have consequences,” Lydell said.
Police report under consideration
The Swedish Electricians’ Association has also examined the Tesla Megapack Supercharger and documented its power setup. As per materials submitted to the Energy Market Inspectorate, electrical cables were reportedly routed from a property located approximately 500 meters from the charging site.
Tomas Jansson, ombudsman and deputy head of negotiations at the Swedish Electricians’ Association, stated that the union was assessing whether to file a police report related to the Tesla Megapack Supercharger. He also confirmed that the electricians’ union was coordinating with IF Metall about the matter. “We have a close collaboration with IF Metall, and we are currently investigating this. We support IF Metall in their fight for fair conditions at Tesla,” Jansson said.
News
Tesla HW4.5 spotted in new Model Y, triggers speculation
Owners taking delivery of recent Model Y builds have identified components labeled “AP45.”
Tesla’s Hardware 4.5 computer appears to have surfaced in newly delivered Model Y vehicles, prompting fresh speculation about an interim upgrade ahead of the company’s upcoming AI5 chip.
Owners taking delivery of recent Model Y builds have identified components labeled “AP45,” suggesting Tesla may have quietly started rolling out revised autonomy hardware.
Hardware 4.5 appears in new Model Y units
The potential Hardware 4.5 sighting was first reported by Model Y owner @Eric5un, who shared details of a Fremont-built 2026 Model Y AWD Premium delivered this January. As per the Model Y owner, the vehicle includes a new front camera housing and a 16-inch center display, along with an Autopilot computer labeled “AP45” and part number 2261336-02-A.
The Tesla owner later explained that he confirmed the part number by briefly pulling down the upper carpet liner below the Model Y’s glovebox. Other owners soon reported similar findings. One Model Y Performance owner noted that their December build also appeared to include Hardware 4.5, while another owner of an Austin-built Model Y Performance reported spotting the same “AP45” hardware.
These sightings suggest that Tesla may already be installing revised FSD computers in its new Model Y batches, despite the company not yet making any formal announcements about Hardware 4.5.
What Hardware 4.5 could represent
Clues about Hardware 4.5 have surfaced previously in Tesla’s Electronic Parts Catalog. As reported by NotATeslaApp, the catalog has listed a component described as “CAR COMPUTER – LEFT HAND DRIVE – PROVISIONED – HARDWARE 4.5.” The component, which features the part number 2261336-S2-A, is priced at $2,300.00.
Longtime Tesla hacker @greentheonly has noted that Tesla software has contained references to a possible three-SoC architecture for some time. Previous generations of Tesla’s FSD computer, including Hardware 3 and Hardware 4, use a dual-SoC design for redundancy. A three-SoC layout could allow for higher inference throughput and improved fault tolerance.
Such an architecture could also serve as a bridge to AI5, Tesla’s next-generation autonomy chip expected to enter production later in 2026. As Tesla’s neural networks grow larger and more computationally demanding, Hardware 4.5 may provide additional headroom for vehicles built before AI5 becomes widely available.
Elon Musk
Elon Musk’s Grokipedia is getting cited by OpenAI’s ChatGPT
Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia.
Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia, an AI-generated encyclopedia developed by rival xAI, which was founded by Elon Musk. The citations appeared across a limited set of queries.
Reports about the matter were initially reported by The Guardian.
Grokipedia references in ChatGPT
Grokipedia launched in October as part of xAI’s effort to build an alternative to Wikipedia, which has become less centrist over the years. Unlike Wikipedia, which is moderated and edited by humans, Grokipedia is purely AI-powered, allowing it to approach topics with as little bias as possible, at least in theory. This model has also allowed Grokipedia to grow its article base quickly, with recent reports indicating that it has created over 6 million articles, more than 80% of English Wikipedia.
The Guardian reported that ChatGPT cited Grokipedia nine times across responses to more than a dozen user questions during its tests. As per the publication, the Grokipedia citations did not appear when ChatGPT was asked about high-profile or widely documented topics. Instead, Grokipedia was referenced in responses to more obscure historical or biographical claims. The pattern suggested selective use rather than broad reliance on the source, at least for now.
Broader Grokipedia use
The Guardian also noted that Grokipedia citations were not exclusive to ChatGPT. Anthropic’s AI assistant Claude reportedly showed similar references to Grokipedia in some responses, highlighting a broader issue around how large language models identify and weigh publicly available information.
In a statement to The Guardian, an OpenAI spokesperson stated that ChatGPT “aims to draw from a broad range of publicly available sources and viewpoints.” “We apply safety filters to reduce the risk of surfacing links associated with high-severity harms, and ChatGPT clearly shows which sources informed a response through citations,” the spokesperson stated.
Anthropic, for its part, did not respond to a request for comment on the matter. As for xAI, the artificial intelligence startup simply responded with a short comment that stated, “Legacy media lies.”
Swedish unions consider police report over Tesla Megapack Supercharger
Tesla HW4.5 spotted in new Model Y, triggers speculation
