

News
SpaceX starts stacking Starship’s first orbital-class Super Heavy booster
By all appearances, SpaceX has begun the process of stacking what could become the first Super Heavy booster capable of supporting orbital Starship test flights.
Known as booster number 3 (BN3), numerous sections of the 70-meter-tall (230 ft) steel rocket have been spotted at SpaceX’s Boca Chica, Texas factory over the last six or so weeks – adding up to a substantial portion of what is now expected to be the first flightworthy Super Heavy. Earlier this year, SpaceX stacked Super Heavy BN1 to its full height but late design changes effectively rendered the prototype largely irrelevant and turned it into more of a manufacturing pathfinder and source of practice than anything else.
As a result, BN1 never even left the high bay it was built in before SpaceX workers cut the booster into scrap. As of May, while a handful of parts for booster number 2 have been spotted, signs indicate that BN2 will be turned into a small test tank to qualify Super Heavy’s complex and unproven thrust dome and engine section.
That leaves Super Heavy BN3. According to NASASpaceflight.com, SpaceX has nominally assigned booster BN3 to support Starship SN20 on its inaugural space launch attempt. Just last week, SpaceX filed an application with the FCC for permission to communicate with Starship and Super Heavy during that “orbital test flight” – paperwork that included a six-month launch window scheduled to open no earlier than June 20th.
If approved by the FCC and – far more importantly – the FAA, Starship’s first “orbital test flight” will circumnavigate three-quarters of the world in approximately 90 minutes, launching from Boca Chica and ending – if all goes well – with Starship SN20 gently splashing down near Kauai, Hawai’i. From the sparse documentation SpaceX included in the public application, it’s ambiguous if there will be an attempt to recover Super Heavy booster BN3 or if the test flight will actually be orbital, given that Starship SN20 wont complete a full orbit.
Technically speaking, although a Starship capable of safely launching from Texas to Hawai’i is almost unequivocally capable of reaching orbit, the safest possible “orbital” flight test for such a massive spacecraft would stop just shy of orbit. A guaranteed free-return reentry would make it almost impossible for Starship to reach orbit, fail to deorbit after its first ~90 minutes in space, and end up posing a risk to populated areas – like, say, the now-infamous boosters of China’s Long March 5B rocket. Regardless, it’s clear that the specifics of Starship’s first spaceflight attempt are still very much up in the air and liable to change over the next few weeks.



What isn’t up in the air is the fact that SpaceX will need to all but fully assemble and test Super Heavy booster BN3 and Starship SN20 before any potential space shot. Along those lines, SpaceX still has a huge amount of work to do. Per Twitter user Brendan Lewis’ accounting, SpaceX has at least six BN3 sections – amounting to 22 rings and two of three tank domes – either completed or awaiting integration. The process of stacking BN3 began sometime in the last 7-10 days when SpaceX joined two four-ring sections – including the booster’s common dome, likely pictured above.
SpaceX has mostly completed BN3’s engine section, including a thrust dome with plumbing cutouts for a full 28 Raptor engines. Most recently, what looks like a Super Heavy fuel manifold appeared in Boca Chica. That manifold will attach to the end of a supersized Super Heavy transfer tube – also spotted in work – used to route methane through the liquid oxygen tank to fuel its Raptor engines. Fueling 28 large, high-performance Raptors is no mean feat and requires a rat’s nest of plumbing to feed them more than 15 metric tons (~30,000 lb) of propellant every second at full throttle.
Put simply, a majority of Super Heavy booster BN3’s hardware appears to be ready or almost ready for integration. The eight rings now stacked represent approximately 20% of the rocket’s full height, leaving another 30 or so rings – 54m (~180 ft) – to go. Given how long BN1 assembly took SpaceX, the company has its work cut out for it to fully integrate BN3 by June 20th, and the first operational Super Heavy prototype will almost certainly need to complete several major tests before being cleared for flight. As such, an inaugural space launch attempt in June or July is wildly implausible, but it’s far from out of the question that Starship and Super Heavy could be ready for their first “orbital test flight” before summer turns to fall.
Elon Musk
Elon Musk is setting high expectations for Tesla AI5 and AI6 chips
Musk confirmed this week that Tesla had just completed a design review for AI5.

Elon Musk is setting high expectations for Tesla’s in-house silicon program. As per Musk in a set of recent posts on X, Tesla’s AI5 and AI6 will be game-changing.
Tesla’s AI5 and AI6 are incredibly important for Tesla’s future, which will likely be built on the back of very high-volume products like Optimus and the Cybercab.
Musk sets high expectations
Musk confirmed this week that Tesla had just completed a design review for AI5, which will initially be manufactured by TSMC in Taiwan before production ramps in Arizona. As per Musk, consolidating Tesla’s chip design efforts into one architecture has allowed the company to focus its silicon talent on delivering a single high-performance platform.
“Just had a great design review today with the Tesla AI5 chip design team! This is going to be an epic chip. And AI6 to follow has a shot at being the best (by) AI chip by far. Switching from doing 2 chip architectures to 1 means all our silicon talent is focused on making 1 incredible chip. No-brainer in retrospect,” Musk wrote in his post.
In a follow-up post, the CEO also stated that the company’s upcoming AI5 chip “will probably be the best inference chip of any kind” for models below ~250 billion parameters, with the “lowest cost silicon and best performance per watt.” Musk added that AI6, which follows AI5, “has a shot at being the best AI chip by far.”
AI6 as Dojo’s successor
While AI5 is nearing production, Musk has also pointed to AI6 as Tesla’s next major target. The chip will be manufactured at Samsung’s upcoming Texas facility, part of a multibillion-dollar deal to support Tesla’s next-generation products such as the Cybercab and the Optimus humanoid robot. Musk also noted that AI6 could effectively replace Project Dojo as Tesla’s training platform, given its potential for both inference and training workloads.
Industry veterans have echoed this view, with former Apple and Rivian engineer Phil Beisel suggesting that “AI6 is now Dojo.” Musk appeared to agree, responding with a “bullseye” emoji. Musk has also noted on X that he would personally be walking the line in Samsung’s upcoming AI6 factory in Texas, to make sure that the facility’s output is accelerated according to Tesla’s requirements.
Elon Musk
Elon Musk: Neuralink could restore partial vision to the blind next year
The executive posted the update on social media platform X.

Elon Musk has suggested that Neuralink could attempt to restore limited sight to visually impaired patients as early as 2026.
The executive posted the update on social media platform X amid news of Neuralink’s first successful Telepathy implants outside the United States.
Blindsight trials
In a response to a post from Neuralink’s official X account about its first Canadian patients, Musk wrote that the company is “Aiming to restore (limited) sight to the completely blind next year.” The update was well-received on social media, as the device would most likely provide notable quality of life improvements to patients. Neuralink’s current implant, Telepathy, is already changing lives today, and the same will likely be true for Blindsight.
This was not the first time that Musk has provided an update to Neuralink’s Blindsight trials. Earlier this year, Musk told the Qatar Economic Forum that the first human implantation of Blindsight could occur early 2026, potentially in the United Arab Emirates. Neuralink has explored collaboration with the Cleveland Clinic Abu Dhabi to perform the initial surgery. Blindsight has also received a “breakthrough device” designation from the US FDA, hinting at the implant’s development.
Blindsight’s potential
Musk has previously described Blindsight as Neuralink’s brain-computer interface (BCI) designed to restore vision. During Neuralink’s 2022 Show & Tell event, Musk stated that Blindsight would target the brain’s visual cortex, bypassing damaged eyes entirely to generate visual perception. This means that vision could be restored even for people who were born blind.
“The first two applications we’re going to aim for in humans are restoring vision, and I think this is notable in that even if someone has never had vision ever, like they were born blind, we believe we can still restore vision. The visual part of the cortex is still there. Even if they’ve never seen before, we’re confident they could see,” Musk said.
News
Sweden Mediation Institute throws in the towel on Tesla vs IF Metall union conflict
After nearly two years, the union’s strike has become the country’s longest labor dispute to date.

Sweden’s Mediation Institute has formally ended its efforts to resolve the conflict between Tesla Sweden and trade union IF Metall. After nearly two years, the union’s strike has become the country’s longest labor dispute to date.
Launched 677 days ago by the IF Metall union, the strike was intended to push Tesla Sweden into signing a collective agreement. Tesla Sweden, however, remained firm, maintaining that its working conditions are already better than union standards.
Mediation Institute withdraws
The state-run Mediation Institute, which had been involved early in the strike, confirmed this week that it was officially closing the case. The two parties have had several meetings, but neither side has been able to come to an agreement.
Director General Irene Wennemo described the effort as unprecedented in difficulty in a comment to Ekot. “We have tried in every possible way to get the parties to come closer to each other in a way that allows this conflict to end. But now we have come to the end of the road and have realized that it is just as good to end the case,” she told the Swedish outlet.
Union signals flexibility
The mediators noted in their final report that Tesla Sweden had limited authority in the talks, with key decisions appearing to rest with executives in the United States. The situation, they stated, created barriers to compromise that made the conflict “unlike anything else.” Tesla has maintained throughout that its Swedish workers already receive strong benefits and protections without the need for a formal collective agreement, as noted in a CarUp report.
IF Metall, for its part, has begun hinting that it was open to alternatives. This was highlighted by Union Chair Marie Nilsson, who noted that while the preferred outcome of the country’s longest strike in history is a signed agreement, “other alternative solutions” are now on the table. “You can do it in different ways. The easiest thing would be to sign a collective agreement. But when that is not possible, we have to find other alternative solutions as well, so we are open to discussion,” the union official stated.
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