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SpaceX set for second weekend launch, new titanium grid fins to be tested
After a highly successful Friday launch and recovery of a reused Falcon 9, a second vehicle is preparing to launch on the opposite coast of the United States. Scheduled to lift off at precisely 1:25 p.m. PST, this mission will see a brand new Falcon 9 lift Iridium’s second set of ten NEXT satellites, after which the first stage will attempt to land in the Pacific Ocean aboard Just Read The Instructions, SpaceX’s West Coast drone ship.
If the schedule holds, the 46 hours separation between launches will make SpaceX one of very few entities to have launched the same vehicle in such close succession. While Russia/USSR and the Republic of China have tended to routinely launch missions with as few as a handful of hours in between, it is extremely rare in the United States, and such an accomplishment will likely make SpaceX the second private company to ever conduct two launches in under 48 hours.
This turnaround, which COO Gwynne Shotwell clarified could safely be as few as 24 hours, bodes extremely well for SpaceX’s and Musk’s goal of being able to launch every 24 hours. With the COO of the company already under the impression that 24 hours would be safely and reliably achievable, all that lies in the way of 24 hour cadence is pad availability. With current cadence suggesting that at least two weeks of down time is needed after a launch to verify pad health, the late-fall reactivation of Launch Complex 40 and eventual activation of SpaceX’s planned Boca Chica, Texas launch facility will give SpaceX three general-purpose pads and one limited use-case pad (Vandenberg Air Force Base) to launch from by late 2018 or early 2019. Three general purpose pads would allow SpaceX to launch every four or five days, assuming no improvements in pad resilience and autonomy, and this weekend’s back to back launches will demonstrate that SpaceX is easily capable of fully taking advantage of those three (or four) pads once they are all active.
Falcon 9’s fancy new titanium grid fins. (SpaceX/Instagram)
As for the launch today, it will debut some intriguing new hardware intended to improve the ease of reusability for the first stage. Musk offered a tweet storm last night and SpaceX one or two photos to explain the utility of the vehicles distinctive and unusual black grid fins. Ready to launch in just over an hour from Vandenberg Air Force Base, Falcon 9 and its new grid fins will place the next ten iridium NEXT satellites in Low Earth Orbit. The first stage will then proceed to the autonomous spaceport drone ship Just Read The Instructions, while testing its rather fancy titanium grid fins. Considerably larger than their aluminum predecessors, this new iteration of grid fins will is intended to both provide more control authority and glide capability in anticipation of the Falcon Heavy, while also offering improve resilience to the extreme heat and forces grid fins must necessarily cope with during reentry. You may have noted grid fins appearing to glow red and orange with the heat of reentry in past live coverage, and recovered stages demonstrate just how harsh high temperatures can be to aluminum. Titanium is famously resistant to heat and will thus optimally be able to be reused with no refurbishment or replacement whatsoever.
With the launch just over an hour out and no current known issues, you can watch SpaceX’s regularly amazing live coverage of the launch at spacex.com/webcast.
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News
Elon Musk makes a key Tesla Optimus detail official
“Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote on X.
Tesla CEO Elon Musk just made a key detail about Optimus official. In a post on X, the CEO clarified some key wording about Optimus, which should help the media and the public become more familiar with the humanoid robot.
Elon Musk makes Optimus’ plural term official
Elon Musk posted a number of Optimus-related posts on X this weekend. On Saturday, he stated that Optimus would be the Von Neumann probe, a machine that could eventually be capable of replicating itself. This capability, it seems, would be the key to Tesla achieving Elon Musk’s ambitious Optimus production targets.
Amidst the conversations about Optimus on X, a user of the social media platform asked the CEO what the plural term for the humanoid robot will be. As per Musk, Tesla will be setting the plural term for Optimus since the company also decided on the robot’s singular term. “Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote in his reply on X.
This makes it official. For media outlets such as Teslarati, numerous Optimus bots are now called Optimi. It rolls off the tongue pretty well, too.
Optimi will be a common sight worldwide
While Musk’s comment may seem pretty mundane to some, it is actually very important. Optimus is intended to be Tesla’s highest volume product, with the CEO estimating that the humanoid robot could eventually see annual production rates in the hundreds of millions, perhaps even more. Since Optimi will be a very common sight worldwide, it is good that people can now get used to terms describing the humanoid robot.
-->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-Optimi-per-year production line at the Fremont Factory. Giga Texas would get an even bigger Optimus production line, which should be capable of producing tens of millions of Optimi per year.
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 makes a key Tesla Optimus detail official
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
