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SpaceX Falcon 9 booster returns to port on a drone ship for the first time in six months

Falcon 9 B1048 became the first Falcon 9 booster to successfully launch and land four times on November 11th and returned to Port Canaveral on November 15th. (Richard Angle)

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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.

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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.

Falcon 9 B1048 prepares to be lifted off of drone ship OCISLY as technicians install a jig used for lifting the booster and retracting its legs(and leg retraction) jig. (Richard Angle)
For the first time ever, those lifting (and leg operations) will utilize Port Canaveral’s new mobile crane. (Richard Angle)

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.

Falcon 9 B1048.4 returned to Port Canaveral aboard drone ship OCISLY on November 15th. (Richard Angle)

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla already has a complete Robotaxi model, and it doesn’t depend on passenger count

That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.

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Credit: @AdanGuajardo/X

Tesla already has the pieces in place for a full Robotaxi service that works regardless of passenger count, even if the backbone of the program is a small autonomous two-seater. 

That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.

Two-seat Cybercabs make perfect sense

During the Q&A portion of the call, Tesla Vice President of Vehicle Engineering Lars Moravy pointed out that more than 90% of vehicle miles traveled today involve two or fewer passengers. This, the executive noted, directly informed the design of the Cybercab. 

“Autonomy and Cybercab are going to change the global market size and mix quite significantly. I think that’s quite obvious. General transportation is going to be better served by autonomy as it will be safer and cheaper. Over 90% of vehicle miles traveled are with two or fewer passengers now. This is why we designed Cybercab that way,” Moravy said. 

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Elon Musk expanded on the point, emphasizing that there is no fallback for Tesla’s bet on the Cybercab’s autonomous design. He reiterated that the autonomous two seater’s production is expected to start in April and noted that, over time, Tesla expects to produce far more Cybercabs than all of its other vehicles combined.

“Just to add to what Lars said there. The point that Lars made, which is that 90% of miles driven are with one or two passengers or one or two occupants, essentially, is a very important one… So this is clearly, there’s no fallback mechanism here. It’s like this car either drives itself or it does not drive… We would expect over time to make far more CyberCabs than all of our other vehicles combined. Given that 90% of distance driven or distance being distance traveled exactly, no longer driving, is one or two people,” Musk said. 

Tesla’s robotaxi lineup is already here

The more interesting takeaway from the Q4 and FY 2025 earnings call is the fact that Tesla does not need the Cybercab to serve every possible passenger scenario, simply because the company already has a functional Robotaxi model that scales by vehicle type.

The Cybercab will handle the bulk of the Robotaxi network’s trips, but for groups that need three or four seats, the Model Y fills that role. For higher-end or larger-family use cases, the extended-wheelbase Model Y L could cover five or six occupants, provided that Elon Musk greenlights the vehicle for North America. And for even larger groups or commercial transport, Tesla has already unveiled the Robovan, which could seat over ten people.

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Rather than forcing one vehicle to satisfy every use case, Tesla’s approach mirrors how transportation works today. Different vehicles will be used for different needs, while unifying everything under a single autonomous software and fleet platform.

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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.

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Credit: What's Inside | X

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:

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.

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tesla 4680
Image used with permission for Teslarati. (Credit: Tom Cross)

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.”

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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: 

“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.

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