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SpaceX Starship event expected this September, says Elon Musk
SpaceX CEO Elon Musk has implied that he will continue the tradition of annual Starship update events later this year, likely presenting on the progress the company has made over the last 12 months at its South Texas rocket factory.
Beginning in Guadalajara, Mexico at the September 2016 International Astronautical Congress (IAC), Musk has presented a detailed annual update on the status of SpaceX’s next-generation Starship launch vehicle in September or October for the last four years. Formerly known as the Interplanetary Transport System (ITS) and Big Falcon Rocket (BFR), Starship is effectively a continuation of the unprecedented progress SpaceX has made with Falcon 9 and Heavy reusability.
SpaceX has managed to reliably reuse Falcon boosters 5+ times and is on the way to replicating that with payload fairings, but Musk has concluded that the Falcon family – despite being some of the largest operational rockets in existence – is just too small to feasibly recover and reuse the orbital second stage. With Starship, SpaceX wants to take a slightly different approach.

While also a two-stage rocket, Starship will have a magnitude more thrust than Falcon 9 and twice the thrust of Saturn V, the largest liquid rocket ever successfully launched. More importantly, both Starship stages are designed to be easily and rapidly reusable, while also entirely getting rid of deployable payload fairings. In theory, once fully optimized, Starship and the Super Heavy booster should be capable of placing 150 metric tons (~330,000 lb) of payload into low Earth orbit (LEO) in a single launch.
Of course, that is going to be an immense challenge – arguably the single most ambitious project in the history of commercial spaceflight – and SpaceX has quite a ways to go before it can even come close. Aside from the huge publicity and excitement it generates, offering detailed explanations of how exactly SpaceX is progressing towards those goals and how Starship’s design is evolving is likely the primary reason Musk has chosen to continue doing annual presentations.
SpaceX may likely be years away from routine, fully-reusable Starship launches but that doesn’t mean that no progress has been made. In the last ~10 months, SpaceX has successfully flown Starhopper to 150 meters (500 ft), destroyed Starship Mk1; built, tested, and destroyed Starships SN1, SN3, SN4, and four standalone test tanks; and expanded its South Texas presence from almost nothing to a large, semi-permanent factory.
Aside from Starship production and testing, SpaceX has evolved the cutting-edge Raptor engine from a relatively rough prototype to an engine capable of operating at the fringes of what thermodynamics will allow. Per Musk, a vacuum-optimized variant of the existing Raptor engine may already be preparing for its first test fires in McGregor, Texas. Meanwhile, SpaceX won its first Starship contract from NASA a matter of weeks ago, solidifying the ambitious rocket’s stature relative to other more traditional next-generation rockets from Blue Origin and the United Launch Alliance (ULA).

All things considered, there is an extraordinary amount of tangible progress on tap for the Starship update Musk says is planned for September. With a little luck, the 2020 presentation will align with Starship’s test program much like the 2019 event did with Starhopper, coming just a few months after ambitious flight tests.
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Tesla Semi factory looks almost complete during Thanksgiving weekend
Based on recent drone videos, the Tesla Semi factory looks practically ready to start operations.
It appears that the Tesla Semi factory near Giga Nevada is already hard at work preparing for the initial production of the Class 8 all-electric truck. This was, at least, hinted at in a recent drone flyover of the facility from a longtime watcher.
The Tesla Semi factory after Thanksgiving
Drone operator and Tesla Semi advocate @HinrichsZane recently shared some footage he captured of the upcoming facility during the Thanksgiving weekend. Based on his video, it appears that Tesla gave its employees in the area the weekend off. One thing is evident from the video, however, and that is the fact that the Tesla Semi factory looks practically ready to start operations.
The Tesla Semi watcher did point out that the electric vehicle maker is still busy bringing in production equipment into the facility itself. Once these are installed, it would not be surprising if initial production of the Tesla Semi begins.
A new Tesla Semi
The upcoming completion of the Tesla Semi factory near Gigafactory Nevada seems all but inevitable in the coming months. What would be especially interesting, however, would be the vehicles that would be produced on the site. During Elon Musk’s presentation at the 2025 Annual Shareholder Meeting, a glimpse of the production Tesla Semi was shown, and it looks quite a bit different than the Class 8 all-electric truck’s classic appearance.
As could be seen in the graphic from the CEO’s presentation, the updated Tesla Semi will feature slim lightbar headlights similar to the new Tesla Model Y, Cybertruck, and the Cybercab. Tesla also teased a number of aerodynamic improvements that increased the truck’s efficiency to 1.7 kWh per mile. Extended camera units, seemingly for FSD, could also be seen in the graphic.
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Tesla scores major hire as Apple scientist moves to Optimus team
Chen, who advanced from individual contributor to technical lead during his time at Apple, noted that he was blown away by Tesla’s efforts and synergy.
Former Apple research scientist Yilun Chen has left the tech giant to join Tesla’s Optimus AI team. Chen, who advanced from individual contributor to technical lead during his time at Apple, noted that he was blown away by Tesla’s efforts and synergy.
Apple veteran closes a major chapter
In a farewell note, Yilun Chen reflected on his tenure at Apple as a period defined by rapid growth and exposure to notable internal projects, some of which remain unreleased. His roles spanned engineering, research, early product incubation, and hands-on prototyping, allowing him to build expertise across both mature and emerging teams.
Chen credited mentors, colleagues, and cross-functional collaborators for shaping his trajectory, calling the experience unforgettable and emphasizing how each team taught him different lessons about scaling technology, guiding product vision, and navigating fast-moving research environments. “Each role has offered me invaluable unique lessons… My deepest gratitude goes to my colleagues, mentors and friends,” he wrote.
Tesla’s Optimus lab secured the hire
Chen said the move to Tesla was driven by the momentum surrounding Optimus, a humanoid robot powered by LLM-driven reasoning and Physical AI. After visiting Tesla’s Optimus lab, he admitted that he was “totally blown away by the scale and sophistication of the Optimus lab and deep dedication of people when I got to visit the office.”
His first week at Tesla, he noted, involved spontaneous deep-tech discussions, a flat team structure, rapid prototyping cycles, and what he called a “crazy ideas with super-fast iterations” culture. Chen emphasized that the team’s ambition, as well as its belief that humanoid robots are now within reach, creates an energy level that feels aimed at changing the world.
“You can feel the energy to change the world here,” he wrote in a post on social media.
Elon Musk
Elon Musk gives nod to SpaceX’s massive, previously impossible feat
It was the booster’s 30th flight, a scenario that seemed impossible before SpaceX became a dominant force in spaceflight.
Elon Musk gave a nod to one of SpaceX’s most underrated feats today. Following the successful launch of the Transporter-15 mission, SpaceX seamlessly landed another Falcon 9 booster on a droneship in the middle of the ocean.
It was the booster’s 30th flight, a scenario that seemed impossible before SpaceX became a dominant force in spaceflight.
Elon Musk celebrates a veteran Falcon 9 booster’s feat
SpaceX completed another major milestone for its Smallsat Rideshare program on Friday, successfully launching and deploying 140 spacecraft aboard a Falcon 9 from Vandenberg Space Force Base. The mission, known as Transporter-15, lifted off two days later than planned after a scrub attributed to a ground systems issue, according to SpaceFlight Now. SpaceX confirmed that all payloads designed to separate from the rocket were deployed as planned.
The Falcon 9 used for this flight was booster B1071, one of SpaceX’s most heavily flown rockets. With its 30th mission completed, it becomes the second booster in SpaceX’s fleet to reach that milestone. B1071’s manifest includes five National Reconnaissance Office missions, NASA’s SWOT satellite, and several previous rideshare deployments, among others. Elon Musk celebrated the milestone on X, writing “30 flights of the same rocket!” in his post.
Skeptics once dismissed reusability as unfeasible
While rocket landings are routine for SpaceX today, that was not always the case. Industry veterans previously questioned whether reusable rockets could ever achieve meaningful cost savings or operational reliability, often citing the Space Shuttle’s partial reusability as evidence of failure.
In 2016, Orbital ATK’s Ben Goldberg argued during a panel that even if rockets could be reusable, they do not make a lot of sense. He took issue with Elon Musk’s claims at the time, Ars Technica reported, particularly when the SpaceX founder stated that fuel costs account for just a fraction of launch costs.
Goldberg noted that at most, studies showed only a 30% cost reduction for low-Earth orbit missions by using a reusable rocket. “You’re not going to get 100-fold. These numbers aren’t going to change by an order of magnitude. They’re just not. That’s the state of where we are today,” he said.
Former NASA official Dan Dumbacher, who oversaw the Space Launch System, expressed similar doubts in 2014, implying that if NASA couldn’t make full reusability viable, private firms like SpaceX faced steep odds.
