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SpaceX CEO Elon Musk kills mini BFR spaceship 12 days after announcing it
Less than two weeks after SpaceX CEO Elon Musk announced that Falcon 9’s “second stage [would] be upgraded…like a mini-BFR Ship” to prove lightweight heatshield and hypersonic control surface technologies, Musk took to Twitter to assert that the mini BFR spaceship project was dead, despite having stated that SpaceX was working to launch that test article into orbit as early as June 2019 just 12 days prior.
From a public perspective, the status of SpaceX’s next-gen rocket program (known as BFR) is effectively up in the air after several cryptic and seemingly contradictory statements from the company’s CEO and chief engineer.
No, we’re just going to accelerate BFR
— Elon Musk (@elonmusk) November 20, 2018
On Nov. 17, Musk tweeted that BFR – last updated in September 2018 alongside a statement that “this is [likely] the the final iteration [of BFR] in terms of broad architectural decisions” – had already been redesigned, going so far as to describe it as a “radical change”. What that radical design change might be is almost entirely unclear, although Musk has now twice stated that the purpose of these changes (and the whiplash-inducing cancellation of the mini-spaceship) is to “accelerate BFR”.
Radical change
— Elon Musk (@elonmusk) November 17, 2018
As of now, SpaceX appears to have just completed a massive 9-meter diameter composite tank dome in the company’s temporary Port of Los Angeles tent, where a small but growing team of engineers and technicians are working to realize some version of the company’s next-generation rocket. That group has been working in near-silence for the better part of a year and has accepted delivery of and set up a wide range of custom-built tooling for carbon composite fabrication, and has even managed to get that tooling producing massive composite parts that are expected to eventually make up the structure of a spaceship prototype.
That prototype would eventually be shipped to South Texas, where SpaceX is constructing an entirely new facility from scratch to test the design, technology, and operation of the first full-scale BFR spaceship (BFS). As of a few months ago, the plan was to begin those hop tests before the end of 2019, but it’s no longer clear if SpaceX still intends to build a prototype spaceship to conduct hops and high-speed, high-altitude test flights.
- BFR’s spaceship design, as of 2018. (SpaceX)
- A BFS attempts a Mars landing in this official updated render. (SpaceX)
- SpaceX’s huge Port of LA-based BFR tent, September 18th. (Pauline Acalin)
- SpaceX’s first BFR spaceship prototype is coming together piece by piece. (SpaceX/Pauline Acalin)
Responsibly building giant rockets
One can only hope that the SpaceX employees tasked with bringing an already monumentally difficult idea from concept to reality are learning about these earth-shaking, “radical” decisions and changes through a medium other than Twitter. If those senior engineers and technicians are not extensively forewarned and given some say in these major system-wide decisions, it’s hard to exaggerate the amount of time, effort, and resources potentially being wasted (or at least misdirected).
There is undoubtedly something to be said for getting complex and difficult things as right as possible on the first serious try, especially when the sheer expense of the task at hand might mean that there is only one real chance to try. Still, it’s not particularly encouraging when a three-year-old hardware development program marked by several major design iterations is still experiencing anything close to “radical change”. After multiple years of concerted effort, BFR still appears to be in some sort of design limbo, where a constant and haphazard stream of on-paper changes act as a near-insurmountable hurdle standing in the way of a completed “good enough” blueprint that can begin to be made real.

Ultimately, even if some of the worst-case scenarios described above turn out to be true, there are still many, many reasons to remain positive about SpaceX’s BFR program on the whole. The next-gen rocket’s propulsion system of choice – an advanced engine known as Raptor – is quite mature at this point and may already be nearing initial flight readiness. Regardless of any future changes to BFR’s overall spaceship and booster structures, SpaceX technicians, engineers, and material scientists have likely gained invaluable experience in pursuit of an unprecedented 9-meter diameter rocket built almost entirely out of carbon fiber composites.
Further, it appears that quite a bit of progress has been made over the course of R&D programs related to methane-oxygen RCS thrusters (Falcon uses nitrogen), autogenous tank pressurization with gaseous methane and oxygen (Falcon uses helium), and perhaps even in-situ resource utilization (ISRU) that will be an absolute necessity to generate water, oxygen, and methane that will keep prospective Mars colonists alive and refuel spaceships for the voyage back to Earth.
- SpaceX’s horizontal Raptor test stand is pictured here in April 2018. A prototype Raptor can be seen in the center bay. (Aero Photo/Teslarati)
- A new rocket test-stand takes shape at SpaceX’s McGregor, TX facilities. As of just a few months ago, this site was effectively barren of activity. (April 17, Aero Photo)
- SpaceX’s Boca Chica facilities now sport two massive propellant tanks, meant to support BFR spaceship hop tests. (NSF /u/ bocachicagal, SpaceX)
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Tesla Cybercab display highlights interior wizardry in the small two-seater
Photos and videos of the production Cybercab were shared in posts on social media platform X.
The Tesla Cybercab is currently on display at the U.S. Department of Transportation in Washington, D.C., and observations of the production vehicle are highlighting some of its notable design details.
Photos and videos of the production Cybercab were shared in posts on social media platform X.
Observers of the Cybercab display unit noted that the two-seat Robotaxi provides unusually generous legroom for a vehicle of its size. Based on the vehicle’s video, the compact two-seater appears to offer more legroom than Tesla’s larger vehicles such as the Model Y, Model X, and Cybertruck.
The Cybercab’s layout allows Tesla to dedicate nearly the entire cabin to passengers. The vehicle is designed without a steering wheel or pedals, which helps maximize interior space.
Footage from the display also highlights the Cybercab’s large center screen, which is positioned prominently in front of the passenger bench. The display appears intended to provide entertainment and ride information while the vehicle operates autonomously.
Images of the vehicle also show an additional camera integrated into the Cybercab’s C-pillar. The extra camera appears to expand the vehicle’s field of view, which would be useful as Tesla works toward fully unsupervised Full Self-Driving.
Tesla engineers have previously explained that the Cybercab was designed to be highly efficient both in manufacturing and in operation. Cybercab Lead Engineer Eric E. stated in 2024 that the Robotaxi would be built with roughly half the number of parts used in a Model 3 sedan.
“Two seats unlocks a lot of opportunity aerodynamically. It also means we cut the part count of Cybercab down by a substantial margin. We’re gonna be delivering a car that has roughly half the parts of Model 3 today,” the Tesla engineer said.
The Tesla engineer also noted that the Cybercab’s cargo area can accommodate multiple golf bags, two carry-on suitcases, and two full-size checked bags. The trunk can also fit certain bicycles and a foldable wheelchair depending on size, which is quite impressive for a small car like the Cybercab.
Elon Musk
Elon Musk’s xAI wins permit for power plant supporting AI data centers
The development was reported by CNBC, citing confirmation from the Mississippi Department of Environmental Quality (MDEQ).
Mississippi regulators have approved a permit allowing Elon Musk’s artificial intelligence company xAI to construct a natural gas power plant in Southaven. The facility is expected to support the company’s expanding AI infrastructure tied to its Colossus data center operations near Memphis.
The development was reported by CNBC, citing confirmation from the Mississippi Department of Environmental Quality (MDEQ).
According to the report, regulators “voted to approve the permit” of xAI subsidiary MZX Tech LLC to construct a power plant featuring 41 natural gas-burning turbines “after careful consideration of all public comments and community concerns.”
The Mississippi Department of Environmental Quality stated that the permit followed a regulatory review process that included public comments and community input. Jaricus Whitlock, air division chief for the MDEQ, stated that the project met all applicable environmental standards.
“The proposed PSD permit in front of the board today not only meets all state and federal permitting regulations, but goes above and beyond what is required by law. MDEQ and the EPA agree that not a single person around our facilities will be exposed to unhealthy levels of air pollution,” Whitlock stated.
The planned facility will help provide electricity for xAI’s AI computing infrastructure in the Memphis region.
The Southaven project forms part of xAI’s efforts to scale computing capacity for its artificial intelligence systems.
The company currently operates two major data centers in Memphis, known as Colossus 1 and Colossus 2, which provide computing power for xAI’s Grok AI models. xAI is also planning to build another large data center in Southaven called Macrohardrr, which would be located in a warehouse previously used by GXO Logistics.
Large-scale AI training requires substantial computing power and electricity, prompting technology companies to develop dedicated energy infrastructure for their data centers.
SpaceX President Gwynne Shotwell previously stated that xAI plans to develop 1.2 gigawatts of power capacity for its Memphis-area AI supercomputer site as part of the federal government’s Ratepayer Protection Pledge. The commitment was announced during an event with United States President Donald Trump.
“As part of today’s commitment, we will take extensive additional steps to continue to reduce the costs of electricity for our neighbors. xAI will therefore commit to develop 1.2 GW of power as our supercomputer’s primary power source. That will be for every additional data center as well. We will expand what is already the largest global Megapack power installation in the world,” Shotwell said.
“The installation will provide enough backup power to power the city of Memphis, and more than sufficient energy to power the town of Southaven, Mississippi where the data center resides. We will build new substations and invest in electrical infrastructure to provide stability to the area’s grid.”
Elon Musk
Tesla China teases Optimus robot’s human-looking next-gen hands
The image was shared by Tesla AI’s account on Weibo and later reposted by Tesla community members on X.
A new teaser shared by Tesla’s China team appears to show a pair of unusually human-like hands for Optimus.
The image was shared by Tesla AI’s account on Weibo and later reposted by Tesla community members on X.
As could be seen in the teaser image, the new version of Optimus’ hands features proportions and finger structures that look strikingly similar to those of a human hand. Their appearance suggests that they might have dexterity approaching that of a human hand.
If the image reflects a new generation of Optimus’ hands, it could indicate Tesla is continuing to refine one of the most critical components of its humanoid robot.
Hands are widely viewed as one of the most difficult engineering challenges in robotics. For Optimus to perform complex real-world work, from manufacturing tasks to household activities, its hands would need to be the best in the industry.
Elon Musk has repeatedly described Optimus as Tesla’s most important long-term product. In posts on social media platform X, Musk has stated that Optimus could eventually become the first real-world Von Neumann machine.
In theory, a Von Neumann machine is a self-replicating system capable of building copies of itself using available materials. The concept was originally proposed by mathematician John von Neumann in the mid-20th century.
“Optimus will be the first Von Neumann machine, capable of building civilization by itself on any viable planet,” Musk wrote in a post on X.
If Optimus is expected to carry out complex work autonomously in the future, high levels of dexterity will likely be essential. This makes the development of advanced robotic hands a key step towards Musk’s long-term expectations for the product.






