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SpaceX spotted hot-fire testing Falcon 9 Block 5 ahead of its first reflight on August 7
Less than three months after SpaceX debuted its upgraded Falcon 9 Block 5 rocket, the company is set for an unexpectedly sudden inaugural reuse of the first highly reliable and reusable rocket to roll off of the Hawthorne, CA assembly line. Falcon 9 booster 1046 (B1046) is now targeting 1:18 AM EDT, August 7 for its second launch.
Confirmed by visual observation of a sooty Block 5 booster vertical on Cape Canaveral’s Pad 40, this reuse will be just two weeks away from beating SpaceX’s booster turnaround record of 72 days.
Static fire test of Falcon 9 complete—targeting August 7 launch of Merah Putih from Pad 40 in Florida.
— SpaceX (@SpaceX) August 2, 2018
On the ground to visually confirm plans for the historic reuse, Teslarati photographer Tom Cross also managed to capture an intriguing propellant loading and abort test, where SpaceX appeared to intentionally abort a ‘launch’ attempt after rapidly loading a full complement of liquid oxygen (LOX) and rocket-grade kerosene (RP-1).
While not 100% clear why this testing was done today, an extensive understanding of Falcon 9 Block 5’s behavior during propellant late-load and launch abort scenarios are both critical for the reliable operation of the upgraded rockets and invaluable for the first Crew Dragon launches later this year and early next, the latter with astronauts on board. With humans atop the rocket, a deep understanding of the vehicle’s behavior during a wide range of off-nominal scenarios is more critical than ever, be it required by NASA or simply a side effect of due diligence on behalf of SpaceX.
https://twitter.com/_TomCross_/status/1025074341040533504
A new era of reusable rockets
Regardless, the main focus of this mission is to launch a payload for Indonesian operator PT Telkom Indonesia, in this case a ~5800 kg (12800 lb) geostationary communications satellite known as Merah Putih (formerly Telkom 4). On the SpaceX side of things, this mission is absolutely critical for the company’s future – it will mark the (hopefully) successful inaugural reuse of a Falcon 9 Block 5 booster, the first of many dozens or even hundreds to come over the next several years if SpaceX’s can make good on its aspirations.
While not immensely impressive in the sense that B1046’s refurbishment took ~85 days to Block 4’s record 72-day turnaround, that cursory conclusion is far from accurate. The record turnaround with Block 4 booster B1045 was essentially the culmination of more than a year of experience with nearly a dozen Block 3 and Block 4 Falcon 9 reuses. While that experience definitely transferred in part to SpaceX’s first attempt at reusing Falcon 9 Block 5 (and especially so with the actual design of its reusability-focused upgrades), it’s worth noting that the first reuses of Falcon 9s averaged booster turnaround times of 180-250 days, nearly double or triple the time between Block 5’s first-ever launch and that same booster’s first reflight.
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- Falcon 9 B1046 vents during a launch abort test just before its successful static fire, August 2nd. (Tom Cross)
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- Drone ship OCISLY preps for its second Falcon 9 recovery in less than three weeks. (Tom Cross)
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- A new vessel – GO Navigator – joined SpaceX’s fleet on July 31st, taking the place of fairing recovery stand-in GO Pursuit. (Tom Cross)
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- Merah Putih (formerly Telkom 4) seen preparing for launch in Florida. (SSL)
Even still, B1046’s debut launch, landing, and refurbishment were wholly unique considering that SpaceX – according to Elon Musk – conducted an extensive “teardown” analysis of the pathfinder rocket after it was transported from the drone ship back to one of the company’s Cape Canaveral refurbishment facilities. It’s very likely the case that that teardown was one of the most extensive SpaceX has done with a recovered rocket, couched on the fact that the company’s future is wholly balanced on Falcon 9 Block 5’s success and ease/efficiency of reusability.
That critical teardown process likely took anywhere from 30-60 days, if not simply as long as needed to do it right, after which the rocket was fully reassembled and transported to SpaceX’s Launch Complex 40 (LC-40). Roughly eight days after it arrived at LC-40, B1046 rolled out to the pad’s launch mount, went vertical, and completed a series of tests (including static fire) on Thursday (8/2) afternoon. The static fire was confirmed by a few observers, while Tom Cross captured the first unequivocal proof that the rocket is sooty (and thus B1046).
This moment may seem small on the scale of SpaceX’s many towering achievements, but it will very likely become a fundamental keystone in the future history of affordable access to space.
prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet (including fairing catcher Mr Steven) check out our brand new LaunchPad and LandingZone newsletters!
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Tesla hints at Starlink integration with recent patent
“By employing polymer blends, some examples enable RF transmission from all the modules to satellites and other communication devices both inside and outside the vehicle.”
Tesla hinted at a potential Starlink internet terminal integration within its vehicles in a recent patent, which describes a vehicle roof assembly with integrated radio frequency (RF) transparency.
The patent, which is Pub. No U.S. 2025/0368267 describes a new vehicle roof that is made of RF-transparent polymer materials, allowing and “facilitating clear communication with external devices and satellites.”
Tesla believes that a new vehicle roof design, comprised of different materials than the standard metallic or glass elements used in cars today, would allow the company to integrate modern vehicular technologies, “particularly those requiring radio frequency transmission and reception.
Tesla has recently filed a US patent application on integrating RF transparent materials into the roof structure.
“facilitating clear communication with external devices and satellites”
Tesla fleet is getting @Starlink connectivity integration soon. LFG @Tesla @elonmusk… pic.twitter.com/bLa8YtPLd1
— Chansoo Byeon (@Chansoo) December 9, 2025
Instead of glass or metallic materials, Tesla says vehicles may benefit from high-strength polymer blends, such as Polycarbonate, Acrylonitrile Butadiene Styrene, or Acrylonitrile Styrene Acrylate.
These materials still provide ideal strength metrics for crashworthiness, stiffness for noise, vibration, and harshness control, and are compliant with head impact regulations.
They would also enable better performance with modern technologies, like internet terminals, which need an uninterrupted signal to satellites for maximum reception. Tesla writes in the patent:
“By employing polymer blends, some examples enable RF transmission from all the modules to satellites and other communication devices both inside and outside the vehicle.”
One of the challenges Tesla seems to be aware of with this type of roof design is the fact that it will still have to enable safety and keep that at the forefront of the design. As you can see in the illustration above, Tesla plans to use four layers to increase safety and rigidity, while also combating noise and vibration.
It notes in the patent that disclosed examples still meet the safety requirements outlined in the Federal Motor Vehicle Safety Standards (FMVSS).
Starlink integrated directly into Tesla vehicles would be a considerable advantage for owners. It would come with a handful of distinct advantages.
Initially, the inclusion of Starlink would completely eliminate cellular dead zones, something that is an issue, especially in rural areas. Starlink would provide connectivity in these remote regions and would ensure uninterrupted service during road trips and off-grid adventures.
It could also be a critical addition for Robotaxi, as it is crucial to have solid and reliable connectivity for remote monitoring and fleet management.
Starlink’s growing constellation, thanks to SpaceX’s routine and frequent launch schedule, will provide secure, stable, and reliable internet connectivity for Tesla vehicles.
Although many owners have already mounted Starlink Mini dishes under their glass roofs for a similar experience, it may be integrated directly into Teslas in the coming years, either as an upgrade or a standard feature.
News
Tesla supplements Holiday Update by sneaking in new Full Self-Driving version
It seems Tesla was waiting for the Hardware 4 rollout, as it wanted to also deploy a new Full Self-Driving version to those owners, as it appeared in the release notes for the Holiday Update last night.
Tesla has surprised some owners by sneaking in a new Full Self-Driving version with the wide release of the Holiday Update, which started rolling out to Hardware 4 owners on Friday night.
Tesla has issued a controlled and very slow release pattern with the Holiday Update, which rolls out with Software Version 2025.44.25.5.
For the past two weeks, as it has rolled out to Hardware 3 and older Tesla owners, the company has kept its deployment of the new Software Version relatively controlled.
It seems Tesla was waiting for the Hardware 4 rollout, as it wanted to also deploy a new Full Self-Driving version to those owners, as it appeared in the release notes for the Holiday Update last night.
Tesla Full Self-Driving v14.2.1.25 made its first appearance last night to Hardware 4 owners who are members of the Early Access Program (EAP). It appears to be a slight refinement from FSD v14.2.1, which has been out for a couple of weeks.
Tesla v2025.44.25.5 Holiday update incoming
Also Full Self-Driving v14.2.1.25!!! pic.twitter.com/74D7S0UGXz
— TESLARATI (@Teslarati) December 13, 2025
Many owners welcome the new FSD version, us included, because we’ve been less than impressed with v14.2.1. We have experienced some minor regressions with v14.2.1, especially with Speed Limit recognition, Speed Profile tinkering, and parking performance.
As it stands, Full Self-Driving is still particularly impressive, but Tesla is evidently having an issue with some of the adjustments, as it is still refining some of the performance aspects of the suite. This is expected and normal with some updates, as not all of them are an improvement in all areas; we routinely see some things backtrack every once in a while.
This new FSD version is likely to take care of those things, but it also includes all of the awesome Holiday Update features, which include:
- Grok with Navigation Commands (Beta) – Grok will now add and edit destinations.
- Tesla Photobooth – Take pictures inside your car using the cabin-facing camera
- Dog Mode Live Activity – Check on your four-legged friend on your phone through periodic snapshots taken of the cabin
- Dashcam Viewer Update – Includes new metrics, like steering wheel angle, speed, and more
- Santa Mode – New graphics, trees, and a lock chime
- Light Show Update – Addition of Jingle Rush light show
- Custom Wraps and License Plates – Colorizer now allows you to customize your vehicle even further, with custom patterns, license plates, and tint
- Navigation Improvements – Easier layout and setup
- Supercharger Site Map – Starting at 18 pilot locations, a 3D view of the Supercharger you’re visiting will be available
- Automatic Carpool Lane Routing – Navigation will utilize carpool lanes if enabled
- Phone Left Behind Chime – Your car will now tell you if you left a phone inside
- Charge Limit Per Location – Set a charge limit for each location
- ISS Docking Simulator – New game
- Additional Improvements – Turn off wireless charging pad, Spotify improvements, Rainbow Rave Cave, Lock Sound TRON addition
Tesla also added two other things that were undocumented, like Charging Passport and information on USB drive storage to help with Dashcam.
Tesla is updating Cybertruck owners on its timeline of a massive feature that has yet to ship: Powershare with Powerwall.
Powershare is a bidirectional charging feature exclusive to Cybertruck, which allows the vehicle’s battery to act as a portable power source for homes, appliances, tools, other EVs, and more. It was announced in late 2023 as part of Tesla’s push into vehicle-to-everything energy sharing, and acting as a giant portable charger is the main advantage, as it can provide backup power during outages.
Cybertruck’s Powershare system supports both vehicle-to-load (V2L) and vehicle-to-home (V2H), making it flexible and well-rounded for a variety of applications.
However, even though the feature was promised with Cybertruck, it has yet to be shipped to vehicles. Tesla communicated with owners through email recently regarding Powershare with Powerwall, which essentially has the pickup act as an extended battery.
Powerwall discharge would be prioritized before tapping into the truck’s larger pack.
However, Tesla is still working on getting the feature out to owners, an email said:
“We’re writing to let you know that the Powershare with Powerwall feature is still in development and is now scheduled for release in mid-2026.
This new release date gives us additional time to design and test this feature, ensuring its ability to communicate and optimize energy sharing between your vehicle and many configurations and generations of Powerwall. We are also using this time to develop additional Powershare features that will help us continue to accelerate the world’s transition to sustainable energy.”
Owners have expressed some real disappointment in Tesla’s continuous delays in releasing the feature, as it was expected to be released by late 2024, but now has been pushed back several times to mid-2026, according to the email.
Foundation Series Cybertruck buyers paid extra, expecting the feature to be rolled out with their vehicle upon pickup.
Cybertruck’s Lead Engineer, Wes Morrill, even commented on the holdup:
As a Cybertruck owner who also has Powerwall, I empathize with the disappointed comments.
To their credit, the team has delivered powershare functionality to Cybertruck customers who otherwise have no backup with development of the powershare gateway. As well as those with solar…
— Wes (@wmorrill3) December 12, 2025
He said that “it turned out to be much harder than anticipated to make powershare work seamlessly with existing Powerwalls through existing wall connectors. Two grid-forming devices need to negotiate who will form and who will follow, depending on the state of charge of each, and they need to do this without a network and through multiple generations of hardware, and test and validate this process through rigorous certifications to ensure grid safety.”
It’s nice to see the transparency, but it is justified for some Cybertruck owners to feel like they’ve been bait-and-switched.
Tesla hints at Starlink integration with recent patent
Tesla supplements Holiday Update by sneaking in new Full Self-Driving version
