

News
SpaceX just finished its third Starship rocket in two months and a fourth is on the way
SpaceX just rolled a completed Starship prototype to the launch pad for the third time in two months and began stacking the next rocket just hours after its assembly facilities were vacated.
SpaceX began building the latest Starship prototype – known as serial number 4 (SN4) – around March 23rd. Exactly 31 days later, SpaceX lifted the vast steel rocket onto a Roll Lift transporter and carried it roughly a mile down the road to the company’s Boca Chica, Texas test and launch facilities. In just a few hours, technicians lifted the rocket off its transporter and onto a fixed launch mount made out of thick steel beams, expediency made possible partly by the addition of new mounting points and hold-down clamps.
Sitting atop the late Starship SN3 prototype’s salvaged skirt, landing leg, and service section, the fate of Starship SN4 remains to be seen and the path it has taken to the pad is paved with the remains of several former prototypes. For the most part, that should be a positive aspect. Given how apparent it is that SpaceX is very quickly learning from past mistakes, SN4 has the best chance yet of successfully passing its proof tests and graduating into Raptor static fire and (perhaps) flight testing. However, if things don’t go as planned, SpaceX is perhaps just a week or two away from completing the next prototype – Starship SN5.
A few hours after SpaceX lifted Starship SN4 onto its steel launch mount, CEO Elon Musk revealed an aerial photo of the rocket and its pad facilities taken with a drone. Recently painted gray and refurbished to undo damage done by Starship SN3’s April 3rd, that mount is currently configured with a strong metal frame and three powerful hydraulic rams. A nearly identical jig was damaged during SN3’s last test when a minor tsunamic of liquid nitrogen – used to safely simulate ultra-cold and explosive liquid oxygen and methane propellant – washed over the mount after the rocket burst.
Much like an ice cube can violently crack and pop when it rapidly changes temperature, untreated steel (almost always cheaper than the alternative) can also be catastrophically damaged by rapid temperature changes (thermal shock). This appears to be exactly what happened to the first hydraulic ram mount, which had visible cracks in photos taken after Starship SN3’s April 3rd demise.
SpaceX appears to have had no issue at all acquiring a replacement in a matter of weeks and it arrived and was installed several days ago. The purpose of the hardware is relatively simple: simulate the stresses one or three Raptor engines will create when ignited and ensure Starship’s ‘thrust puck’ and engine section can survive those stresses while filled with cryogenic liquid methane.
Each ram attaches to the thrust puck with the same hardware an actual Raptor uses, including the rods each engine needs for thrust vector control (TVC; i.e. active steering). In the event that Starship SN4 passes its cryogenic proof test(s) and engine stress simulation(s) with flying colors, SpaceX has already built, acceptance-tested, and shipped three Raptor engines to Boca Chica, where they are waiting inside an assembly tent for their call to action.

Once a Starship prototype passes acceptance testing and three Raptor engines can be installed, it will be a first for SpaceX’s next-generation rocket engine. For example, if SN4 makes it through testing and is ready to proceed into static fire operations, it will be the first time Raptor has operated in a multi-engine setup – always a significant milestone for any launch vehicle, including SpaceX’s own Falcon 9 and Merlin engines.
In case SN4 does make it to the other side, SpaceX is already prepared with both road closures and NOTAMs (Notices To Airmen) for static fire and hop tests spread out over the next week or so.
Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.
News
Morgan Stanley’s Adam Jonas dubs Tesla FSD a “game changer” after marathon drive
Jonas reported that FSD handled more than 99% of the miles.

Morgan Stanley’s analyst Adam Jonas shared a notable endorsement of Tesla’s Full Self-Driving (FSD) software after completing a 1,400-mile round trip from New York to Michigan in his Model Y.
Jonas reported that FSD handled more than 99% of the miles, calling the system “a game changer” for long-distance driving.
Hands-free experience
Jonas drove his 2021 Tesla Model Y equipped with Hardware 3 and FSD Supervised v12.6.4, and he used the system nearly the entire trip. “Having your hands off the wheel and feet off the pedals for nearly 12 hours of driving is a real game changer that is hard to appreciate without experiencing it for yourself,” he noted.
He explained that outside of two heavy downpours, one on the Pennsylvania Turnpike and another in suburban Detroit, plus some light maneuvering in fast food parking lots, FSD handled the drive without any human intervention. “FSD made no mistakes or close calls that I recall. The system handles highways very safely and confidently. I cannot imagine buying another EV without FSD.”
Broader implications
Jonas added that he has used FSD consistently over the past 18 months, and the $8,000 he paid for the feature feels like a bargain considering the value. He also praised Tesla’s Supercharging network, which supported his trip without issue.
Jonas has been one of Wall Street’s most closely followed voices on Tesla, and his comments add weight to the ongoing debate about the role of autonomy in the company’s future. His current price target for Tesla stock stands at $410. During Morgan Stanley’s 13th Annual Laguna Conference, he echoed similar experiences with Tesla’s software, emphasizing that FSD “probably drove well over 99% of the miles” on his recent trips.
Elon Musk
Elon Musk just bought $1 billion in Tesla stock, his biggest purchase ever
Prior to this latest move, Musk’s most recent purchase was for about 200,000 shares worth $10 million in 2020.

Tesla (NASDAQ:TSLA) shares rose on Monday after CEO Elon Musk disclosed a rare insider purchase of company stock worth about $1 billion.
A filing with the U.S. Securities and Exchange Commission (SEC) revealed that Musk acquired 2.57 million shares last Friday at various prices. The move represents Musk’s largest TSLA purchase ever by value, as per Verity data.
Elon Musk’s TSLA purchase
The disclosure sent Tesla shares up more than 8% in premarket trading Monday, as investors read the purchase as a notable vote of confidence, as stated in a CNBC report. Tesla stock had closed slightly lower Friday but remains more than 25% higher over the past three months. It should be noted that prior to this latest move, Musk’s most recent purchase was for about 200,000 shares worth $10 million in 2020.
Market watchers say the purchase could help shore up investor sentiment amid a volatile year for TSLA stock. Shares have faced pressure from a variety of factors, from year-over-year sales challenges due to the new Model Y changeover, political controversies tied to Musk, and reduced U.S. incentives for EVs under the Trump administration. Nevertheless, analysts such as Wedbush’s Dan Ives stated that Musk’s purchase was a “huge sign of confidence for Tesla bulls and shows Musk is doubling down on his Tesla A.I. bet.”
Tesla and Elon Musk
Musk already owns about 13% of Tesla, and his latest purchase comes as the company prepares for a key shareholder vote in November. Investors will decide whether to approve a compensation package for Musk that could ultimately be worth as much as $975 billion if ambitious market value milestones are achieved. The package has a long-term target of pushing Tesla’s market capitalization to $8.5 trillion, compared with about $1.3 trillion at Friday’s close.
Wall Street’s current consensus price target still implies a roughly 20% decline from current levels, though some Tesla bulls remain optimistic that the company could shift its focus toward autonomy, AI, and robotics. Musk has also asked shareholders to approve an investment into his latest venture, xAI.
News
Tesla adjusts one key detail of Robotaxi operations in Austin

Tesla is adjusting one key detail of Robotaxi operations in Austin: service hours.
Tesla’s Robotaxi platform in Austin has been active since late June and has been running smoothly since then. It has its limits, as Tesla has set hours that Robotaxis can operate, as well as a distinct Service Area, also known as a geofence, which has expanded three times already.
While the geofence is currently approximately 170 square miles in size, Tesla has recently enabled freeway drives, which also necessitated an adjustment to the company’s strategy with its “Safety Monitors.”
Tesla explains why Robotaxis now have safety monitors in the driver’s seat
Traditionally, they sit in the passenger’s seat. During highway driving, they move to the driver’s seat.
These are just a few adjustments that have been made over the past two and a half months. Now, Tesla is adjusting the service hours of Robotaxi operation in Austin, but only slightly.
Tesla will now operate its Robotaxi ride-hailing service from 6 a.m. to 2 a.m., extending the hours by two hours. It previously shut down at midnight.
🚨 Tesla Robotaxi operation in Austin now will end at 2 a.m., a two-hour extension from its previous end time of midnight.
Its new service hours are now 6 a.m. to 2 a.m. local time pic.twitter.com/wXdYO6ARPB
— TESLARATI (@Teslarati) September 13, 2025
Tesla has implemented a variety of safeguards to ensure riders and drivers are safe during Robotaxi rides, and they have made it a point to adjust things when they feel confident that it will not cause any issues.
Many people have been critical of Robotaxi, especially because a person sits in the front of the car.
However, an accident or some type of mistake could do more damage to the autonomous travel sector than anything else. This would not just impact Tesla, but any company operating an autonomous ride-hailing service in the country.
-
Elon Musk2 weeks ago
Tesla’s next-gen Optimus prototype with Grok revealed
-
News1 week ago
Tesla launches new Supercharger program that business owners will love
-
Elon Musk1 week ago
Tesla Board takes firm stance on Elon Musk’s political involvement in pay package proxy
-
News2 weeks ago
Tesla appears to be mulling a Cyber SUV design
-
News2 weeks ago
Tesla deploys Unsupervised FSD in Europe for the first time—with a twist
-
News2 weeks ago
Tesla explains why Robotaxis now have safety monitors in the driver’s seat
-
News2 weeks ago
Tesla is already giving Robotaxi privileges hours after opening public app
-
Elon Musk2 weeks ago
Elon Musk says Tesla will take Safety Drivers out of Robotaxi: here’s when