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SpaceX Falcon 9 booster returns to port on a drone ship for the first time in six months
On November 15th, Falcon 9 booster B1048 returned to port aboard a SpaceX drone ship, the first such return in almost half a year. With that arrival, SpaceX also completed a critical Falcon 9 Block 5 reusability milestone, paving the way for B1048 to continue setting records.
On November 11th, Falcon 9 B1048 made history when it lifted off with 60 Starlink v1.0 satellites, becoming the first rocket booster to launch four separate orbital-class missions. Approximately eight and a half minutes later, B1048 also become the first orbital-class rocket booster to land after its fourth successful launch, setting the vehicle up to be SpaceX’s path leader for future nth-reuse milestones, starting with the first 5th flight in the near future.
Starlink v1.0’s November 11th launch effectively marked the start of SpaceX’s operational satellite constellation deployment, every mission of which will be an opportunity for the company to test new reusability firsts and reduce the risk before certain flight-proven hardware is offered to commercial customers. Company executives have recently indicated that SpaceX hopes to launch as many as 24 Starlink missions – each carrying ~60 satellites – in 2020, giving SpaceX a huge number of opportunities to push the envelope of booster and fairing reusability.
On the ~650 km (340 mi) trip back to Port Canaveral from drone ship Of Course I Still Love You’s (OCISLY) Atlantic Ocean recovery position, the ship – towed by tug Hawk – was forced to briefly divert northwest to escape high seas, but Falcon 9 B1048 was secured by the drone ship’s Octagrabber robot, preventing it from suffering a fate similar to Falcon Heavy booster B1055. By all appearances, the thrice-reused Falcon 9 booster survived the weather and swells unscathed, even as OCISLY itself was visibly banged around, damaging a generator and antenna.
After OCISLY and B1048 arrived in Port Canaveral on the 15th, SpaceX recovery technicians quickly craned the booster off of the drone ship, placing it on the company’s dockside rocket-processing stand. It appears that SpaceX intends to retract B1048’s four carbon fiber landing legs, potentially in a bid to rapidly turn the booster around for a second Starlink v1.0 mission before the end of 2019.
B1048.4’s in-port recovery operations also marked the first time SpaceX has used Port Canaveral’s brand new mobile crane, delivered to the port in January 2019.
While B1048 has become the first Falcon 9 booster to launch four orbital-class missions, SpaceX has another two thrice-flown flightworthy boosters (B1046 and B1049), the former of which is preparing for its own fourth launch as early as December 2019. B1046 is assigned to Crew Dragon’s In-Flight Abort test, a mission that will almost certainly destroy the booster and its inert upper stage when Crew Dragon attempts to escape the rocket while traveling at supersonic speeds. B1049 could support another Starlink mission or the commercial debut of a thrice-flown SpaceX booster and is likely already set for flight after it completed its third launch nearly six months ago.
Coincidentally, B1048’s Nov. 15 port return was SpaceX’s first drone ship recovery since B1049’s third launch and landing, which saw that booster arrive in port in late May 2019. That nearly six-month gap is one of the longest SpaceX has gone without an ocean recovery since Falcon 9’s first successful drone ship landing in April 2016. With any luck, Starlink will ensure that a similar lull is just shy of impossible until Starship takes over and Falcon 9/Heavy is fully retired, likely a solid half a decade away.
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Tesla Cybercab spotted with interesting charging solution, stimulating discussion
The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.
Tesla Cybercab units are being tested publicly on roads throughout various areas of the United States, and a recent sighting of the vehicle’s charging port has certainly stimulated some discussions throughout the community.
The Cybercab is geared toward being a fully-autonomous vehicle, void of a steering wheel or pedals, only operating with the use of the Full Self-Driving suite. Everything from the driving itself to the charging to the cleaning is intended to be operated autonomously.
But a recent sighting of the vehicle has incited some speculation as to whether the vehicle might have some manual features, which would make sense, but let’s take a look:
🚨 Tesla Cybercab charging port is in the rear of the vehicle!
Here’s a great look at plugging it in!!
— TESLARATI (@Teslarati) January 29, 2026
The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.
Now, it is important to remember these are prototype vehicles, and not the final product. Additionally, Tesla has said it plans to introduce wireless induction charging in the future, but it is not currently available, so these units need to have some ability to charge.
However, there are some arguments for a charging system like this, especially as the operation of the Cybercab begins after production starts, which is scheduled for April.
Wireless for Operation, Wired for Downtime
It seems ideal to use induction charging when the Cybercab is in operation. As it is for most Tesla owners taking roadtrips, Supercharging stops are only a few minutes long for the most part.
The Cybercab would benefit from more frequent Supercharging stops in between rides while it is operating a ride-sharing program.
Tesla wireless charging patent revealed ahead of Robotaxi unveiling event
However, when the vehicle rolls back to its hub for cleaning and maintenance, standard charging, where it is plugged into a charger of some kind, seems more ideal.
In the 45-minutes that the car is being cleaned and is having maintenance, it could be fully charged and ready for another full shift of rides, grabbing a few miles of range with induction charging when it’s out and about.
Induction Charging Challenges
Induction charging is still something that presents many challenges for companies that use it for anything, including things as trivial as charging cell phones.
While it is convenient, a lot of the charge is lost during heat transfer, which is something that is common with wireless charging solutions. Even in Teslas, the wireless charging mat present in its vehicles has been a common complaint among owners, so much so that the company recently included a feature to turn them off.
Production Timing and Potential Challenges
With Tesla planning to begin Cybercab production in April, the real challenge with the induction charging is whether the company can develop an effective wireless apparatus in that short time frame.
It has been in development for several years, but solving the issue with heat and energy loss is something that is not an easy task.
In the short-term, Tesla could utilize this port for normal Supercharging operation on the Cybercab. Eventually, it could be phased out as induction charging proves to be a more effective and convenient option.
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Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:Â
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.Â
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.Â
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.Â
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.Â
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Tesla Cybercab spotted with interesting charging solution, stimulating discussion
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
