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SpaceX Falcon Heavy rocket rolls to pad for Tuesday launch, dual booster landing

A Falcon Heavy rocket has rolled out to the launch pad - to launch - for the first time since June 2019. (Richard Angle)

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A SpaceX Falcon Heavy rocket has rolled out to Kennedy Space Center Pad 39A for its first launch (and dual booster landing) in almost three and a half years.

Missing its payload fairing and the US Space Force’s classified USSF-44 payload, SpaceX’s fourth Falcon Heavy rocket rolled out to Pad 39A for the first time on October 25th. On the 27th, the rocket successfully fired up all 27 of its first-stage Merlin 1D engines, reasserting its status as the most powerful operational rocket in the world. On October 30th, SpaceX finally brought Falcon Heavy horizontal and rolled the rocket back to Pad 39A’s integration hangar, where the USSF-44 mission’s several payloads – safely stowed inside a payload fairing – were installed on the rocket.

24 hours later, Falcon Heavy – now fully assembled – departed the hangar again. According to the US Space Systems Command (SSC), despite the exceptionally late rollout on October 31st, SpaceX is on track to launch Falcon Heavy no earlier than (NET) 9:41 am EDT (13:41 UTC) on Tuesday, November 1st.

As previously discussed on Teslarati, USSF-44 will be SpaceX’s first attempt at a direct launch to a geostationary orbit (GEO) some ~36,000 kilometers (~22,400 mi) above Earth’s surface, where spacecraft can hover motionless over their region of choice. To accomplish that feat, Falcon Heavy’s upper stage will need to survive a roughly six-hour coast in the harsh vacuum of space, likely making USSF-44 one of the most challenging missions SpaceX has ever attempted.

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Long orbital coasts of six or so hours are necessary for some of the most challenging launch trajectories. Direct-to-geostationary launches are the most common mission requiring long coast capabilities and are often demanded by the US military. When Falcon’s upper stage gets too cold, its kerosene fuel – which freezes at a much higher temperature than Falcon’s liquid oxygen oxidizer – becomes viscous and slush-like before it becomes solid. If ingested in Falcon’s Merlin Vacuum engine, slushy fuel would likely prevent ignition or outright destroy it.

Teslarati.com – October 10th, 2022

Simultaneously, while worrying about kerosene fuel getting too cold, SpaceX must also ensure that the Falcon upper stage’s cryogenic liquid oxygen (LOx) oxidizer doesn’t boil into gas. If too much LOx warms up and has to be vented out as it turns to gas, the Falcon upper stage could find itself without enough propellant to complete its geostationary orbit circularization burn.

LOx is far less stable, which makes it a bit ironic that the upper stage’s fuel tank bares the only visible sign of the tweaks needed to survive a long coast. To keep the RP1 fuel warmer in orbit, SpaceX has added a layer of grey paint to the RP1 tank, increasing the amount of heat that can be absorbed through unfiltered sunlight. The uninsulated LOx tank, meanwhile, benefits from the unintuitive fact that a cryogenic liquid can stay liquid for a surprisingly long time because some of it warms up and boils off as a gas, sacrificing a small quantity to keep the rest cool.

A look inside the LOx tank of a Falcon 9 upper stage while in orbit. (SpaceX)

According to the US Space Force, USSF-44 will carry several “various payloads” attached to the second Northrop Grumman “Long Duration Propulsive EELV (Evolved Expendable Launch Vehicle) Secondary Payload Adapter” or LDPE-2 – essentially a long-duration kick stage. Cataloged on EverydayAstronaut.com, the payloads include two Lockheed Martin LINUSS-A cubesats that will demonstrate a handful of new technologies and capabilities; TETRA-1, a microsat built by Millenium Space Systems to test on-orbit maneuverability; and a communications satellite prototype called USUVL. Spaceflight Now reports that LPDE-2 will carry three hosted payloads and deploy three satellites.

Finally, a recent Space Systems Command press release [PDF] mentioned a mysterious “Shepard demonstration” – likely a second propulsive kick stage – for the first time, which almost nothing is known about. It’s unclear if there is a main classified satellite the mission revolves around or if USSF-44 is simply a collection of various rideshare payloads headed to GEO.

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Regardless, to launch them directly into geostationary orbit, USSF-44 will mark the first time SpaceX intentionally expends a Falcon Heavy booster. Over three previous launches, SpaceX only managed to land a Falcon Heavy center core once, but that core then tipped over and was destroyed at sea. Two other attempts resulted in failed landings. USSF-44 will continue that trend. Falcon Heavy’s twin side boosters will attempt to continue a more positive trend of simultaneous side-by-side landings and boost back to Florida to touch down at SpaceX’s LZ-1 and LZ-2 pads. SpaceX will also attempt to recover both halves of Falcon Heavy’s payload fairing a record-breaking 1410 kilometers (876 mi) off the Florida coast.

SpaceX says weather is 90% favorable for Falcon Heavy’s November 1st launch attempt. Stay tuned for a link to the company’s official webcast.

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 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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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.

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Credit: Tesla/YouTube

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. 

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. 

“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. 

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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. 

“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. 

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