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SpaceX tweaks Starship's Super Heavy rocket booster as design continues to evolve
CEO Elon Musk says that SpaceX continues to evolve the design of its next-generation Starship spacecraft and Super Heavy rocket booster, a process of continuous improvement the company has successfully used for a decade.
Designed to place more than 100 metric tons (220,000 lb) of payload into Low Earth Orbit (LEO), Starship would effectively double (and possibly triple) the expendable performance of SpaceX’s existing Falcon Heavy rocket. Critically, it would be able to dramatically outclass Falcon Heavy (and Falcon 9 even more so) in a fully reusable configuration, meaning that both the Starship upper stage and Super Heavy booster could be recovered and reused.
Since SpaceX first publicly revealed its next-generation launch vehicle and Mars ambitions in September 2016, the path to realizing the dream of a fully-reusable super heavy-lift launch vehicle has been decidedly windy. After making the radical decision to move entirely from carbon composites to stainless steel in late 2018, the Starship design has remained relatively similar, coalescing around a specific concept that has matured to full-scale tank tests. Now, Musk says that Super Heavy’s design was tweaked slightly to make the booster even taller than before, while he later noted that Starship’s design also continues to “[evolve] rapidly.”
According to Musk, the Super Heavy booster will be stretched by a steel ring or two, reaching a new height of ~70m (230 ft). In other words, Starship’s first stage alone will measure as tall as the entirety of a Falcon 9 or Falcon Heavy rocket – first stage, second stage, and payload fairing included. Powered by up to 37 Raptor engines, a Super Heavy booster could produce more than ~90,000 kN (19,600,000 lbf) of thrust at liftoff – an incredible 12 times as much thrust as SpaceX’s workhorse Falcon 9 rocket.
Starship, meanwhile, will be a beast of an orbital-class upper stage on its own, measuring at least 50m (165 ft) tall and weighing some 1350 metric tons (3 million lb) fully-fueled. Stacked on top of Super Heavy, a Starship ‘stack’ would reach a staggering 120m (395 ft) and weigh more than 5000 metric tons (11 million lb) once loaded with liquid oxygen and methane propellant.
In simple terms, Starship/Super Heavy should be the tallest, heaviest, and most powerful launch vehicle ever assembled once it heads to the launch pad for the first time. While SpaceX is making great daily progress its ever-growing South Texas rocket factory, built up from next to nothing in a matter of months, it could still be quite some time before that milestone is within reach.
SpaceX’s process of continuously tweaking and improving the design and production of its rockets does typically have that effect. However, it’s more a symptom of the company’s approach to hardware and software development. Instead of working slowly and carefully from nothing to a preconceived finished product, SpaceX typically seeks to design, build, and test the minimum viable product, gradually improving (or entirely replacing) past ideas, designs, and hardware until overarching goals are fully achieved.
With Falcon 9 and Falcon Heavy, this meant beginning with Falcon 1, a dead-simple proof-of-concept rocket. After successfully reaching orbit, SpaceX expanded its Falcon 9 development program, itself focused initially on the minimum viable product – a full-scale expendable rocket. Since Elon Musk founded SpaceX in 2002, the goal has always been to build a fully-reusable rocket – the company has simply chosen the far more sustainable and practical approach of tackling only a select few problems at a time.
The Starship and Falcon development programs aren’t directly comparable but it’s safe to say that Starship is currently still in the very early stages of hardware development. Shortly after revealing Super Heavy’s height growth, Musk noted that Starship’s design is also being tweaked.
Sketching out a rough series of upgrades that could feasibly be made to the reusable spacecraft’s currently design, Musk thinks that Starship’s conical tank domes (and thus Super Heavy’s, too) could be flattened. That might allow an extra ~3m (10 ft) of propellant tank space to be squeezed into the same 50m Starship length, improving performance by simply using the vehicle’s fixed volume more efficiently.
With a nascent factory quite literally churning out Starship hardware, these tweaks are a whole different animal. Thanks to data and insight gathered from testing actual full-scale Starship tanks, up to and including fully-assembled tank sections, SpaceX will be able to guide its continuous improvement with even greater precision, honing in on the next-generation rocket’s orbital launch debut.
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Tesla shares rare peek at Semi factory’s interior
The new video of the Tesla Semi factory was posted by the official Tesla account on X.
Tesla has shared a rare peek inside the factory of the Tesla Semi, which is expected to start production next year. Based on the video, it appears that work in the facility’s interior is ongoing, just as hinted at by drone flyers of the site.
Tesla Semi factory
The new video of the Tesla Semi factory, which is located close to Giga Nevada, was posted by the official Tesla account on X. While the video was short at less than 30 seconds long, it did show several parts of the factory’s interior, from its gigantic machines to its expansive space. The company also showed some initial production units of the Semi operating around the site.
Elon Musk shared a quick update on the Tesla Semi’s production at the 2025 Annual Shareholder Meeting. While addressing the company’s shareholders, Musk confirmed that production of the Semi is on track for 2026.
“Starting next year, we (will) manufacture the Tesla Semi. So this, we already have a lot of prototype Tesla Semis in operation. PepsiCo and other companies have been using the Tesla Semi for quite some time. But we will start volume production at our Northern Nevada factory in 2026,” Musk said.
Tesla Semi redesign
Apart from Elon Musk’s confirmation that the Semi will indeed enter production next year, Tesla also showed an image of the Class 8 all-electric truck’s overall look. Based on a slide that was shown during Musk’s presentation, it appears that the Semi has undergone a pretty major redesign. The redesigned Semi features updated design cues that align with the company’s current lineup.
Immediately noticeable from the Semi’s updated design is its front end, which now feature headlights that resemble the style of the Cybertruck, Cybercab, and the new Model Y. Several other changes appear designed to improve aerodynamics, with Tesla now stating that the Semi has an efficiency of 1.7 kWh per mile. Side cameras, likely for FSD, are also quite prominent on the redesigned Semi.
Elon Musk
Tesla says texting and driving capability is coming ‘in a month or two’
“In the next month or two, we’re going to look at the safety statistics, but we’re going to allow you to text and drive, essentially.”
Tesla CEO Elon Musk said that within the next month or two, the company will be able to open the ability for people to text and drive because its Full Self-Driving suite will be robust enough to allow drivers to take their attention away from the road.
In its current state, Tesla Full Self-Driving is a supervised driver assistance suite that requires the vehicle operator to maintain control of the vehicle and pay attention to the road surroundings.
However, the company has been aiming to release a fully autonomous version of the Full Self-Driving suite for years, teasing its future potential and aiming to release a Level 5 suite as soon as possible.
CEO Elon Musk believes the company is on the cusp of something drastic, according to what he said at yesterday’s Annual Shareholder Meeting.
One thing Musk hinted at was that the company should be able to allow those sitting in the driver’s seat of their cars to text and drive “in the next month or two,” as long as the statistics look good.
He said:
“In the next month or two, we’re going to look at the safety statistics, but we’re going to allow you to text and drive, essentially.”
The company recently transitioned to its v14 Full Self-Driving suite, which is its most robust to date, and recently expanded to Cybertruck, completing its rollout across the vehicle lineup.
Currently, Tesla is running v14.1.5, and when major improvements are made, that second number will increase, meaning v14.2 will be the next substantial improvement.
Musk said that v14.3 will be when you can “pretty much fall asleep and wake up at your destination.”
🚨🚨 Elon Musk says Tesla Full Self-Driving v14.3 will be when you can “pretty much fall asleep and wake up at your destination.”
We are on v14.1 currently 👀 pic.twitter.com/KMkWh5Qa7T
— TESLARATI (@Teslarati) November 6, 2025
We’ve heard a considerable amount of similar statements in the past, and Tesla owners have been conditioned to take some of these timeframes with autonomous driving with a grain of salt.
However, with the upgrades in FSD over the past few months, especially with the rollout of Robotaxi in Austin, which does not utilize anyone in the driver’s seat for local roads, it does not seem as if autonomy is that far off for Tesla.
News
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
The Semi has been one of the most anticipated products in the Tesla lineup due to the disruption it could cause in the trucking industry.
Tesla put its all-electric Semi truck through quite a major redesign as its dedicated factory for the vehicle is preparing for initial deliveries to the public starting next year.
The Semi has been one of the most anticipated products in the Tesla lineup due to the disruption it could cause in the trucking industry.
It has already been in numerous pilot programs for some pretty large companies over the past couple of years, PepsiCo. being one of them, and it is moving toward first deliveries to other companies sometime in 2026.
Yesterday at the 2025 Annual Shareholder Meeting, Tesla unveiled its new Semi design, which underwent a pretty significant facelift to match the aesthetic and vibe of the other vehicles in the company’s lineup.
Additionally, Tesla announced some other improvements, including changes to efficiency, and some other changes that we did not get details on yet.
The first change was to the design of the Semi, as Tesla adopted its blade-like light bar for the Class 8 truck, similar to the one that is used on the new Model Y and the Cybertruck:
There also appear to be a handful of design changes that help with aerodynamics, as its efficiency has increased to 1.7 kWh per mile.
Tesla also said it has an increased payload capability, which will help companies to haul more goods per trip.
All of these changes come as the company’s Semi Factory, which is located on the same property as its Gigafactory in Reno, Nevada, is just finishing up. In late October, it was shown that the Semi facility is nearly complete, based on recent drone imagery from factory observer HinrichsZane on X:
The factory will be capable of producing about 50,000 Tesla Semi units annually when it is completely ramped. The company has major plans to help get the Semi in more fleets across the United States.
Other entities are also working to develop a charging corridor for electric Class 8 trucks. The State of California was awarded $102 million to develop a charging corridor that spans from Washington to Southern California.
Another corridor is being developed that spans from Southern California to Texas, and 49 applicants won $636 million from the Department of Transportation for it.
Tesla requested funding for it, but was denied.
The Semi has been a staple in several companies’ fleets over the past few years, most notably that of Frito-Lay and PepsiCo., who have reported positive experiences thus far.
Musk said last year that the Semi had “ridiculous demand.”
Tesla shares rare peek at Semi factory’s interior
Tesla says texting and driving capability is coming ‘in a month or two’
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
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