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SpaceX rocket booster aces tenth launch and landing in major reusability milestone
Update: SpaceX Falcon 9 booster B1051 aced its Starlink-27 launch without issue, becoming the first Falcon booster ever to complete ten consecutive launches and landings.
The mission’s success also means that SpaceX’s internet constellation has more than 1500 functional satellites in orbit, leaving Starlink just two more 60-satellite batches and a few months of orbit-raising away from the ability to deliver internet virtually anywhere on Earth.
Next Spaceflight reports that SpaceX’s next Starlink launch – scheduled as few as five days after the last mission – will see Falcon 9 mark a hugely significant milestone for truly reusable rocketry.
According to Next Spaceflight’s sources, SpaceX has chosen Falcon 9 booster B1051 to launch Starlink-27 – the constellation’s 26th operational mission – as early as 2:42 am EDT (06:42 UTC) on Sunday, May 9th. Scheduled eight weeks (56 days) after the same booster’s last orbital-class launch and landing and just five days after SpaceX’s 25th operational Starlink launch, Starlink-27 will be Falcon 9 B1051’s 10th launch.
While seemingly minor in the scope of SpaceX’s unending roster of spaceflight ‘firsts,’ B1051’s Sunday flight will make Falcon 9 the first reusable liquid rocket booster of any kind to complete ten orbital launches. With that tenth launch and (hopeful) landing, SpaceX will cross a largely symbolic – but still significant – milestone that many traditional aerospace companies and direct competitors have used for at least a decade to rationalize resting on their laurels and continuing to design and build expensive, expendable rockets with no serious path to reusability.
-->For the entirety of SpaceX’s operational life, its only two real competitors have – and continue to be – US conglomerate United Launch Alliance (ULA) and European conglomerate Arianespace. Almost like clockwork, both extremely conservative groups – comprised of numerous traditional, entrenched aerospace and military contractors – have gone through a similar cycle of belittlement and dismissal, denial, goalpost-moving, disbelief, and resignation as SpaceX announced plans for reusability, began real-world attempts, and gradually worked out the kinks.
As it became clear that SpaceX would succeed in its efforts to vertically launch and land Falcon 9 boosters and ULA and Arianespace had to move their goalposts from “it’ll never work,” both generally settled on largely arbitrary claims that even if SpaceX could land rockets, reuse would never be economical. ULA went even further than Arianespace with an explicit claim – derived from armchair analysis built on opaque, unspecified assumptions – that SpaceX’s approach to Falcon reuse would “require ten [booster] uses to be profitable.” [PDF]
Instead, ULA – proudly standing on its high horse – proffered an alternative called “SMART (Sensible Modular. Autonomous Return Technology) Reuse” for its next-generation Vulcan rocket. Instead of landing and reusing entire boosters like SpaceX, ULA would develop an extremely complex engine section that would detach from Vulcan in mid-air, deploy an experimental inflatable heat shield, and be grabbed out of the sky with a helicopter. Even back when the concept was first announced in 2015, ULA’s schedule for SMART reuse would have seen the technology debut no sooner than the mid 2020s.
More than half a decade later, ULA no longer talks about “SMART Reuse” and it certainly doesn’t talk about the program’s schedule. As late as mid-2020, though, CEO Tory Bruno still parrots ULA’s arbitrary estimate that reusability only makes sense after ten flights per booster – and with the added bonus of new goalposts that demand that that “breakeven flight rate…be achieved as a fleet average.”
Arianespace executives have echoed similar sentiments over the years and more recently implied that it would only ever make sense to invest in SpaceX-style reusability if the conglomerate could guarantee at least 30 launch contracts annually.
-->In the meantime, Arianespace and ULA all but handed the vast majority of their commercial market share to SpaceX’s far more affordable Falcon 9 and Falcon Heavy. As a result, the company has effectively taken over the commercial spaceflight industry while its relentless, iterative development approach have produced refined Falcon 9 and Heavy rockets with an unprecedented degree of reusability. Looking at all Falcon 9 Block 5 boosters that have flown more than once, the fleet average is already more than five launches less than three years after the Block 5 upgrade debuted.
SpaceX has also demonstrated – multiple times – that it can launch the same Falcon 9 booster twice in less than a month, quite literally halving the Space Shuttle’s 54-day record while likely requiring somewhere between 10 and 100 times less hands-on work. Just last month, NASA gave SpaceX’s reusability work the ultimate blessing when a Falcon 9 booster launched astronauts for the second time. Of the more than 1500 Starlink satellites SpaceX has launched over the last two years, not a single one of those internet satellites flew on a new Falcon 9 booster.
Finally, Falcon 9 booster B1051 is now on track to become the first liquid rocket booster in history to cross the ten-flight mark set by ULA and targeted by SpaceX CEO Elon Musk. For Musk, “ten flights” has long been a line drawn in the sand – explicitly meant to be an arbitrary target. In reality, after flying multiple Falcon 9 boosters six, seven, eight, and even nine times apiece, SpaceX already believes that the rocket’s existing design is capable of significantly surpassing that target.
Perhaps most importantly, despite the fact that Arianespace and ULA have scarcely begun to even attempt to counter Falcon 9 and Falcon Heavy, SpaceX is already working on Starship – a far more capable, fully-reusable rocket designed from the ground up with lessons learned from Falcon.
News
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
-->Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
News
Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.
Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
-->Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
Elon Musk
Elon Musk reveals what will make Optimus’ ridiculous production targets feasible
Musk recent post suggests that Tesla has a plan to attain Optimus’ production goals.
Elon Musk subtly teased Tesla’s strategy to achieve Optimus’ insane production volume targets. The CEO has shared his predictions about Optimus’ volume, and they are so ambitious that one would mistake them for science fiction.
Musk’s recent post on X, however, suggests that Tesla has a plan to attain Optimus’ production goals.
The highest volume product
Elon Musk has been pretty clear about the idea of Optimus being Tesla’s highest-volume product. During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-per-year line at the Fremont Factory.
Following this, Musk stated that Giga Texas will receive a 10 million-per-year unit Optimus line. But even at this level, the Optimus ramp is just beginning, as the production of the humanoid robot will only accelerate from there. At some point, the CEO stated that a Mars location could even have a 100 million-unit-per-year production line, resulting in up to a billion Optimus robots being produced per year.
Self-replication is key
During the weekend, Musk posted a short message that hinted at Tesla’s Optimus strategy. “Optimus will be the Von Neumann probe,” the CEO wrote in his post. This short comment suggests that Tesla will not be relying on traditional production systems to make Optimus. The company probably won’t even hire humans to produce the humanoid robot at one point. Instead, Optimus robots could simply produce other Optimus robots, allowing them to self-replicate.
-->The Von Neumann is a hypothetical self-replicating spacecraft proposed by the mathematician and physicist John von Neumann in the 1940s–1950s. The hypothetical machine in the concept would be able to travel to a new star system or location, land, mine, and extract raw materials from planets, asteroids, and moons as needed, use those materials to manufacture copies of itself, and launch the new copies toward other star systems.
If Optimus could pull off this ambitious target, the humanoid robot would indeed be the highest volume product ever created. It could, as Musk predicted, really change the world.
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
