News
Elon Musk pegs SpaceX BFR program at $5B as NASA’s rocket booster nears $5B in cost overruns
At the same time as NASA’s overrun-stricken Space Launch System (SLS) continues to limp towards its continuously delayed launch debut, now tentatively expected no earlier than (NET) 2021, SpaceX is forging ahead with the development of an equivalently capable launch vehicle known as BFR, comprised of a spaceship (BFS) and booster (BFB).
During a September 17th update to the next-gen SpaceX rocket’s steady progress, CEO Elon Musk offered a rough cost estimate of $5B to complete its development – no less than $2B and no more than $10B. According to NASA’s Office of the Inspector General (OIG), Boeing – primary contractor for NASA’s SLS “Core Stage” or booster – is all but guaranteed to burn through a minimum of $8.9B between 2012 and the rocket’s tentative 2021 launch debut.
NASA is finally (officially) acknowledging that EM-1, the maiden launch of SLS, will slip until at least June 2020. Sources tell us to expect another slip to 2021, official or not.https://t.co/CYf9SqbhBY
— Eric Berger (@SciGuySpace) October 3, 2018
Originally contracted in 2014 to complete SLS booster development, production, and preparation by 2018 at a cost of $4.2B, Boeing has overrun its budget by a bit less than 50% (up to $6.2B) and overshot its scheduled launch debut by more than 2.5 years. Per an October 10th audit of the SLS booster program, NASA OIG has reasonably concluded that Boeing will pass that $6.2B expenditure estimate – meant to last until 2021 – in December 2018, meaning that at least an additional $2.7B will be required from NASA between now and 2021 if SLS is to have a chance at launching that year.
In other words, compared to Boeing’s first serious 2014 contract for the SLS Core Stages – $4.2B to complete Core Stages 1 and 2 and launch EM-1 in Nov. 2017 – the company will ultimately end up 215% over-budget ($4.2B to $8.9B) and ~40 months behind schedule (42 months to 80+ months from contract award to completion). Meanwhile, as OIG notes, NASA has continued to give Boeing impossibly effusive and glowing performance reviews to the tune of $323 million in “award fees”, with grades that would – under the contracting book NASA itself wrote – imply that Boeing SLS Core Stage work has been reliably under budget and ahead of schedule (it’s not).
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- SLS Block 1. (NASA)
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- An overview of SLS. (NASA)
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- Rockets are perhaps even more capital intensive. (SpaceX)
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- BFR 2018’s Spaceship, BFS. (SpaceX)
The “Satisfactory” Stuff
In reality, Boeing has not once been under budget or ahead of schedule during any of 6+ NASA performance reviews.
“Boeing should have received a “satisfactory” rating for [two review periods]; a “good” rating for [one review period]; and an “unsatisfactory” rating (no award fee) for [the 2017 review period].”
Instead, NASA has given Boeing three “Very Good” (nearly perfect) reviews and three “Excellent” (perfect) reviews over the last 6 years, ultimately dispersing $323M of pure-profit “award fees” thanks to those grades, while the OIG firmly disputes Boing’s worthiness for at least $65M of that sum.
It is pretty pathetic when the only response that @BoeingSpace can muster via @BKingDC at its #politicospace PR effort in response to a damning @NASA_SLS report by @NASAOIG is to dump on the Saturn V – a rocket that actually flew – and worked – half a century ago. https://t.co/daN91bzwpC
— NASA Watch (@NASAWatch) October 12, 2018
Boeing – recently brought to light as the likely source of a spate of egregiously counterfactual op-eds published with the intention of dirtying SpaceX’s image – also took it upon itself to sponsor what could be described as responses to NASA OIG’s scathing October 10th SLS audit. Hilariously, a Politico newsletter sponsored by Boeing managed to explicitly demean and belittle the Apollo-era Saturn V rocket as a “rickety metal bucket built with 1960s technology”, of which Boeing was the core stage’s prime contractor.
At the same time, that newsletter described SLS as a rocket that will be “light years ahead of thespacecraft [sic] that NASA astronauts used to get to the moon 50 years ago.” At present, the only clear way SLS is or will be “light years” ahead – as much a measure of time as it is of distance – of Saturn V is by continuing the rocket’s trend of endless delays. Perhaps NASA astronomers will soon be able to judge exactly how many “light years ahead” SLS is by measuring the program’s redshift or blueshift with one of several ground- and space-based telescopes.
Ultimately, this is a particularly effective bit of self-mockery in the context of rationale lately used by Boeing and NASA to shrug off the jaw-dropping Core Stage contract’s underperformance, missteps, schedule slips, and budget overruns, namely that building big, complex rockets is hard. NASA and Boeing, neither of which have any meaningful experience building big, complex rockets – aside from Saturn IB, Saturn V, and the Space Shuttle – thus should be given a break for reliably and dramatically underestimating the difficulties of doing so in the 21st century.
One of the most breathtaking things about the new SLS report is the response by NASA's Gerstenmaier. Essentially, he says, this a is a big, complex rocket. And it's hard to build this stuff.https://t.co/ou8SFhji6a
— Eric Berger (@SciGuySpace) October 10, 2018
Simultaneously, Boeing and NASA still continue to act as if they are the foremost global experts of building extremely large rockets and continue to throw pile upon pile of taxpayer billions at overpromised attempts to prove as much. It’s no more than a masochistic dream to imagine what could have been or might be if NASA instead redirected those billions towards US aerospace companies with track records of success through fixed-cost contracts or straight-up private funding (SpaceX and Blue Origin, primarily), but it’s often hard not to at least think about the possibilities.
For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!
Tesla (NASDAQ: TSLA) is set to hold its Earnings Call for the first quarter of 2026 on Wednesday, and there are a lot of interesting things that are swirling around in terms of speculation from investors.
With the company’s executives, including CEO Elon Musk, answering a handful of questions that investors submit through the Say platform, fans want to know a lot of things about a lot of things.
These five questions come from Retail Investors, who are normal, everyday shareholders:
- When will we have the Optimus v3 reveal? When will Optimus production start, since we ended the Model S and Model X production earlier than mid-year? What’s the expected Optimus production rate exiting this year? What are the initial targeted skills?
- What milestones are you targeting for unsupervised FSD and Robotaxi expansion beyond Austin this year, and how will that drive recurring revenue?
- How will Hardware 3 cars reach Unsupervised Full Self-Driving?
- When do you expect Unsupervised Full Self-Driving to reach customer cars?
- When will Robotaxi expand past its current limited rollout?
Additionally, these are currently the three questions that are slated to be answered by Institutional Firms, which also answer a handful of questions during the call:
- Now that FSD has been approved in the Netherlands and is expected to launch across Europe this summer, can you discuss your Robotaxi strategy for the region?
- What enabled you to finish the AI5 tapeout early and were there any changes to the original vision? Last week, Elon said AI5 will go into Optimus and the Supercomputer, but one month ago said it would go into the Robotaxi. Has AI5 been dropped from the vehicle roadmap?
- Given the recent NHTSA incident filings, can you update us on the Robotaxi safety data? If safety validation remains the primary bottleneck, why not deploy thousands of vehicles to accelerate the removal of the safety driver?
The questions range through every current Tesla project, including FSD expansion and Optimus. However, many of the answers we will get will likely be repetitive answers we’ve heard in the past.
This is especially pertinent when the questions about when Unsupervised FSD will reach customer cars: we know Musk will say that it will happen this year. Is Tesla capable of that? Maybe. But a more transparent answer that is more revealing of a true timeline would be appreciated.
Hardware 3 owners are anxiously awaiting the arrival of FSD v14 Lite, which was promised to them last year for a release sometime this year.
The Earnings Call is set to take place on Wednesday at market close.
Elon Musk
Elon Musk reveals shocking Tesla Optimus patent detail
What looked promising on paper and in simulations failed to deliver the reliability required for a robot expected to handle delicate tasks like folding laundry, assembling electronics, or assisting in factories and homes.
Elon Musk revealed a shocking detail on the Tesla Optimus patent that was revealed last week. Despite it being made public for the first time, Musk said the company has already moved on from the design, an incredible truth about the development of new technology: things move fast.
Musk dropped a bombshell about the Tesla Optimus humanoid robot hand patent that was released last week. Musk, candidly replying to a post late at night on X, revealed that what is a new technology to many fans and insiders is actually old news to those developing the tech directly.
“We already changed the design,” Musk said. “This one didn’t actually work.”
We already changed the design. This one didn’t actually work.
— Elon Musk (@elonmusk) April 19, 2026
Patents, after all, are often viewed as blueprints for future products. Yet Musk revealed that the rolling contact mechanism—intended to provide smooth, low-friction articulation in the fingers—had already been scrapped after real-world testing exposed its shortcomings.
What looked promising on paper and in simulations failed to deliver the reliability required for a robot expected to handle delicate tasks like folding laundry, assembling electronics, or assisting in factories and homes.
The hand has been one of the biggest challenges for Tesla engineers since Optimus development started years ago. Musk has said that there is not enough recognition for how incredible and useful the human hand is, and designing one for a humanoid robot has been the biggest challenge of all.
Tesla is stumped on how to engineer this Optimus part, but they’re close
This moment underscores the persistent engineering hurdles in achieving reliable humanoid hand dexterity. Human fingers are marvels of evolution: 27 bones, intricate tendons, ligaments, and a network of sensors working in perfect harmony. Replicating that in metal and silicon is extraordinarily difficult.
Rolling contacts promised reduced wear and precise motion, but testing likely revealed issues with durability under repeated stress, grip stability on varied surfaces, or the micro-precision needed for fine motor skills.
These aren’t minor tweaks, but instead they represent fundamental challenges that have plagued robotics teams for decades. Even advanced competitors struggle here—hands remain the Achilles’ heel of most humanoids because the margin for error is razor-thin.
A fraction of a millimeter off, and a robot drops a glass or fails to button a shirt.
What makes Musk’s reply remarkable is how it signals Tesla’s direct communication style on prototype limitations. While many companies guard failures behind glossy marketing and vague timelines, Tesla openly shares setbacks.
Musk was forthcoming about the failure of this recent design. This transparency builds trust with investors, engineers, and fans. It shows Tesla treats Optimus development like true science: rapid iteration, rigorous testing, and zero tolerance for hype that doesn’t match reality.
The disclosure from Musk also highlights Tesla’s blistering pace of development. By the time the patents are published, which is often over a year after the initial filing, the technology has already evolved.
Optimus is far from a static product, and it’s a living project advancing weekly.
In the high-stakes race for general-purpose robots, Tesla’s approach stands out. Admitting a finger-joint design “didn’t actually work” isn’t a weakness—it’s confidence.
True innovation demands confronting failure head-on, and Musk just reminded the world that Optimus is being engineered that way. The next version of those hands is already in testing, and it will be better because Tesla isn’t afraid to say what didn’t work.
Elon Musk
Tesla is sending its humanoid Optimus robot to the Boston Marathon
Tesla’s Optimus robot is heading to the Boston Marathon finish line
Tesla’s Optimus humanoid robot will be stationed at the Tesla showroom at 888 Boylston Street in Boston, right along the final stretch of the Boston Marathon today, ready to cheer on runners and pose for photos with spectators.
According to a Tesla email shared by content creator Sawyer Merritt on X, Optimus will be at the Boston Boylston Street showroom on April 20, coinciding with Marathon Monday weekend. The Boston Marathon finishes on Boylston Street, and the surrounding area draws hundreds of thousands of spectators along with international broadcast coverage. Placing Optimus there puts it in front of a massive public audience at zero advertising cost.
Just got this email. @Tesla’s Optimus robot is coming to Boston.
“Join us from April 19 to 20, 2026, at Tesla Boston Boylston Street showroom to meet Optimus, our humanoid robot, for Marathon Monday. Optimus will be cheering with you on the sidelines and posing for photos.” pic.twitter.com/chxoooO2xV
— Sawyer Merritt (@SawyerMerritt) April 18, 2026
The Tesla showroom is at 888 Boylston Street, between Gloucester Street and Fairfield Street. The final mile of the marathon runs directly along Boylston Street, with runners passing the big stores before reaching the finish line at Copley Square.
Optimus was first announced at Tesla’s AI Day event on August 19, 2021, when Elon Musk presented a vision for a general-purpose robot designed to take on dangerous, repetitive, and unwanted tasks. In March 2026, Optimus appeared at the Appliance and Electronics World Expo in Shanghai, where on-site staff stated that mass production of the robot could begin by the end of 2026. Before that, it showed up at the Tesla Hollywood Diner opening in July 2025 and at a Miami showroom event in December 2025.
Tesla’s well-calculated display of Optimus gives the public a low-pressure first encounter with a robot that Tesla is preparing to soon deploy at scale. The company has previously indicated plans to manufacture Optimus robots at its Fremont facility at up to 1 million units annually, with an Optimus production line at Gigafactory Texas targeting 10 million units per year.
Tesla showcases Optimus humanoid robot at AWE 2026 in Shanghai
Musk has said that Optimus “has the potential to be more significant than the vehicle business over time,” and separately that roughly 80 percent of Tesla’s future value will come from the robot program. Whether that holds depends on production execution. For now, Boston gets a preview of what that future looks like, standing at the finish line on Boylston Street while 32,000 runners pass by.
Tesla Q1 Earnings: What Elon Musk and Co. will answer during the call
Elon Musk reveals shocking Tesla Optimus patent detail
