News
SpaceX reveals new details on Starship’s third test flight
SpaceX has revealed some new information regarding the third test flight of its massive Starship rocket.
The flight, which took place from Starbase, Texas, yesterday morning at 8:25 am CT, capitalized on previous test flights and accomplished a host of new objectives.
All 33 Raptor engines lit in a staggered sequence, and once throttled up, the world’s biggest rocket took flight for the third time.
All 33 Raptor engines burning (Credit: SpaceX)
As Starship climbed into the South Texas skies, the 33 engines continued to operate nominally until the hot stage separation, in which 30 of Super Heavy’s engines shut down as Starship lit its 3 sea-level and 3 vacuum Raptor engines and continued to space.
For the first time, the Super Heavy first stage, Booster 10, successfully performed a boost back burn and aimed for a splashdown just East of the launch pad in the Gulf of Mexico. According to the data displayed on the webcast, the booster reached a peak speed of 5750 km/h and an altitude of 106 km.
Super Heavy performing the boost backburn while Starship heads down range (Credit: SpaceX)
Unlike the Falcon 9, the Super Heavy is so big it does not need to do an entry burn however in one of the last bits of data available on the webcast, it showed the booster attempted to begin its landing burn around 1 km in altitude with only 3 engines lighting and 2 shutting off almost immediately after.
SpaceX has since confirmed that Booster 10 experienced a rapid unscheduled disassembly just 462 meters above the water’s surface, and it is likely that what remained of the booster hit the water at nearly the speed of sound.
While Booster 10 was meeting its fate in the Gulf of Mexico following a great performance, Ship 28 continued to burn all 6 of its Raptor engines and completed its first full-duration burn, inserting itself into its proper sub-orbital trajectory.
Starship just after Raptor shutdown (Credit SpaceX)
Ship 28 then began its coast phase and started a series of tests. The payload bay door, aka pez door, designed to eventually eject the full-size Starlink satellites, was first commanded to open 12 minutes into the flight. SpaceX has yet to confirm whether it managed to fully open/close the door. At 30:18 into the mission, the door appears to have dislodged into the payload bay, and we no longer got any live views inside the ship.
The next task was to re-light the first-ever Raptor engine in space, but due to the vehicle’s roll rates, SpaceX decided to postpone this until a future flight.
Ship 28 then began atmospheric entry, but the ship seemed to be partially out of control with the spin and eventually began to build up plasma. The heat shield was only half exposed, and the rest was bare stainless steel, taking the brunt of the forces of re-entry.
Ship 28 begins atmospheric re-entry (Credit SpaceX)
Thanks to Starlink terminals on board, SpaceX was able to provide incredible live views from a camera located on one of Starship’s flaps. The plasma began as a faint pink glow before rapidly growing and enveloping the vehicle while still maintaining a good data connection which has never before been possible.
Overall, SpaceX made many great advancements on this third test flight and will look to complete all of these on the fourth test flight, including a smooth splashdown of the Super Heavy booster and successful re-entry through the atmosphere for Starship.
When do you think the 4th test flight will occur, and will they fix the issues encountered during flight 3?
Questions or comments? Shoot me an email at rangle@teslarati.com, or Tweet me @RDAnglePhoto.
Elon Musk
Elon Musk drops a surprise update on Boring Company’s next big dig
Musk says Boring Company could shrink the Austin to San Antonio drive to just minutes.
Elon Musk says The Boring Company is working on what he called “a simple, precursor Hyperloop” tunnel connecting Austin and San Antonio, targeting speeds above 200 mph and cutting a drive that can take up to two and a half hours down to a consistent under 30 minutes. Musk posted the idea on X Sunday, in a reply to a repost of an AI generated video imagining a science fiction future with human colonies on other worlds, which he shared with the line “This is the future we shall bring into being.”
This is the future we shall bring into being pic.twitter.com/8aD0w8MDVc
— Elon Musk (@elonmusk) September 20, 2026
The Boring Company’s own account picked up the idea in the same thread, adding a detail about how the trip would actually work: “Because Loop/Hyperloop is express (i.e. no intermediate stops), one could travel from an Austin parking lot to a favorite San Antonio restaurant in about 30 minutes. As long as they both have Loop stations.” That framing ties the proposed intercity link to the same station model the company already runs in Las Vegas, where riders enter the tunnel network through small, garage style stops rather than one central terminal.
This is not the company’s first run at the Austin to San Antonio corridor. Boring Company floated tunnels between the two cities as far back as 2021, and later competed for a separate San Antonio Loop project tied to the airport before that specific bid stalled. Pitches for tunnels in Chicago, Los Angeles, and a New York to Washington corridor have followed a similar pattern of big announcement without a shovel in the ground.
What is different this time is the balance sheet, especially since The Boring Company closed a 3 billion dollar funding round led by investors in the United Arab Emirates earlier this month at a valuation near 23 billion dollars, giving the tunneling company more capital to chase speculative projects than it had during its earlier Texas pitches. The company is also mid-build on two other intercity systems it has actually broken ground on, inc;luding a Nashville tunnel linking downtown to the airport, where a second boring machine finished commissioning in June, and its Las Vegas network, where the station count keeps climbing on paper faster than tunnels get dug.
That gap between announcement and execution is the reason to treat Sunday’s post as an opening bid rather than a project. A tunnel spanning roughly 80 miles between two metro areas, running at speeds Boring Company has not demonstrated over any real distance, would dwarf anything the company has built. For now, the Austin to San Antonio Hyperloop exists as a caption under an AI generated space video.
Elon Musk
Tesla eyes supply partners for Optimus mass production
Tesla certified three Chinese suppliers for Optimus mass production, signaling its robot timeline is accelerating.
Tesla’s robotics team traveled to Ningbo, in China’s Zhejiang province, on September 16 and spent the following day auditing component suppliers for Optimus, according to a Bloomberg report cited by RobotAIGeek. The visit moved three manufacturers from provisional status to certified mass production partners: Tuopu Group, which handles actuators and chassis components, Ningbo Joyson Electronic, a sensor supplier, and Zhejiang Sanhua Intelligent Controls, which builds thermal management systems. All three already supply parts to Tesla’s electric vehicles, and the audit reportedly came with fresh orders that supply chain reports put at an initial batch of roughly 5,000 units.
Tuopu, Joyson, and Sanhua built their manufacturing base serving the automotive industry, where tolerances and volume requirements are already close to what a mass produced humanoid robot demands. Sanhua in particular has history here. Teslarati reported last October that the company had received a roughly $685 million order for linear actuators tied to Optimus, a volume industry watchers estimated could cover around 180,000 robots once production ramped.
Supply chain reports tied to this week’s audit put Tesla’s near term production goal at about 1,000 Optimus units a week by late September, rising to 2,000 to 2,500 units a week by the end of the year. That pace would put real weight behind the timeline Tesla has been building toward since May, when it wound down Model S and Model X production at Fremont to convert that floor space into a dedicated Optimus line targeting one million units annually. JPMorgan analysts who toured the factory in August confirmed the conversion took roughly four months, a pace Musk has called unprecedented for a facility that size.
New drone video shows Tesla’s Optimus Factory reaching a turning point
Fremont is only the first phase. A second, larger Optimus plant is rising at Gigafactory Texas, where drone footage shared by Joe Tegtmeyer last week showed the structural steel nearing completion on the north end of the building. Tesla has said that facility is meant to eventually support production of up to 10 million units a year, though volume output there is not expected before 2027.
Commercial sales of Optimus are still targeted for the second half of 2027, but production is expected to start well before then. JPMorgan analyst Rajat Gupta has said Tesla’s “Optimus Academy” program, which uses early units to collect real world training data inside Tesla’s own facilities, is expected to be running later this year. Bloomberg Intelligence analyst Ian Ma described the Ningbo audits as “a positive commercialization signal for China’s humanoid supply chain,” noting that sentiment could improve further if the visit leads to confirmed supplier nominations and larger orders. The Solactive China Humanoid Robotics Index rose about 1.4% on the news, though it remains down roughly 30% for the year.
Elon Musk
Elon Musk’s next Uranium in Uranus merch is Boring Company’s weirdest tease yet
Elon Musk teased a glowing new Boring Company merch idea, complete with a Geiger counter.
Elon Musk teased the next piece of Boring Company merchandise on X Saturday, and it is exactly as unserious as fans of the company’s product history have come to expect. “The next @boringcompany merch will put Uranium in Uranus,” Musk wrote in a thread posted early Saturday morning. He followed up by explaining that the item would glow in the dark, “because otherwise how could you find it,” and that a Geiger counter would be sold separately as “an optional strap-on.”
Musk closed the thread with a line that doubles as a mission statement for the tunneling company’s merchandise arm: “It’s not easy coming up with something that is both outrageously unsellable and yet extremely popular.”
The Boring Company has built a small but consistent side business out of novelty items that start as jokes and end up selling out. The company’s Not-a-Flamethrower raised roughly $10 million in a few days back in 2018, moving all 20,000 units it produced. Its Burnt Hair perfume, priced around $100 a bottle, sold out fast enough that scalpers were flipping units on eBay for ten times the retail price. Boring Bricks, made from tunneling spoil, followed the same playbook of teasing a product on X months before it became real.
Musk has not said what the actual item will be, only that it involves uranium and glows in the dark. Given the pattern, that vagueness is probably intentional. Past merch announcements have started as one-line jokes and taken weeks or months to turn into an actual product listing on the company’s site, and there is no guarantee this one follows through at all.
The timing lines up with a period of real momentum for the Boring Company outside of the joke merchandise. The company said last week it plans to double the number of operational stations on its Vegas Loop by the end of the year, a target tied to a hiring push for drivers and operations managers. Prufrock-5, one of the company’s tunnel boring machines, also just wrapped a test tunnel in Bastrop, Texas, and is expected to relaunch on its next assignment in November.
Whether the uranium joke turns into an actual product remains to be seen. Musk’s post did not include a price, a shipping date, or even a name for the item, which has historically meant a Boring Company website page goes up quietly, password protected, sometime before an announcement.