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SpaceX nails first Falcon 9 booster launch debut in months [photos]

Falcon 9 B1059 lifts off with Cargo Dragon on its December 5th launch debut. (Teslarati - Richard Angle)

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On December 5th, SpaceX pulled off a flawless Falcon 9 booster debut in support of the Cargo Dragon spacecraft’s CRS-19 space station resupply mission, marking the first launch of a new booster in months.

More specifically, the last time SpaceX launched a new Falcon 9 booster was on June 25th, 2019 during STP-2, Falcon Heavy Block 5’s second mission in two months. The mission featured two flight-proven side boosters – both reused from the Block 5 rocket’s April 11th launch debut – but also relied on a new center core (B1057). B1057 unfortunately failed moments before a planned touchdown on drone ship Of Course I Still Love You (OCISLY) but still technically qualifies as the last new booster launched by SpaceX prior to CRS-19.

A few days shy of six months later, CRS-19’s brand new Falcon 9 booster (and an expendable upper stage) rolled out to SpaceX’s LC-40 launch pad, confirming suspicions that the mission would use a new booster instead of twice-flown B1056.

CRS-19 Cargo Dragon capsule C106 sits atop Falcon 9 booster B1059 ahead of the rocket’s December 5th launch debut. (Teslarati – Richard Angle)

After the booster successfully launched CRS-17 and CRS-18 in May and July 2019, both SpaceX and NASA indicated that B1056 was the most likely candidate to launch CRS-19. Plans clearly changed, although SpaceX indicated in a prelaunch conference that the booster manifest swap was purely a scheduling move and didn’t indicate any technical issues or dissatisfaction from NASA.

In the history of SpaceX booster reuse, NASA has thus far only been comfortable flying on flight-proven boosters that had previously flown NASA missions only, meaning that it will likely be at least 12-18 months before the space agency has another twice-flown Falcon 9 booster ready for a NASA mission. Regardless, the space agency has been undeniably willing to support the technology far sooner than most would have expected, given its history of extreme conservatism over the two or so decades.

Regardless, after a brief wind-related 24-hour delay, Falcon 9 B1059 lifted off for the first time on December 5th, performing perfectly and ultimately landing on drone ship Of Course I Still Love You (OCISLY) to leave the upper stage with enough fuel to perform experiments after deploying Cargo Dragon. The mission’s drone ship landing – unusual for Cargo Dragon launches – raised suspicions in the spaceflight community and SpaceX ultimately confirmed the above information, indicating that CRS-19’s upper stage would perform orbital coast tests (likely for the USAF).

As it turns out Falcon 9 B1059’s flawless landing aboard OCISLY also made it the 20th booster SpaceX has successfully recovered. All told, SpaceX has flown a total of 46 separate missions with flight-proven Falcon 9 and Falcon Heavy boosters, all of which have occurred since the technology’s March 2017 debut.

After reaching orbit for the third time ever, Cargo Dragon capsule C106 and a fresh trunk began the journey to the International Space Station (ISS) with around 2600 kg (5800 lb) of science experiments, consumables, and other cargo aboard. The spacecraft successful rendezvoused with the ISS on December 8th and was captured and berthed by the station’s massive robotic arm (Canadarm2) shortly thereafter. All told, SpaceX has now delivered roughly 41 metric tons (90,000 lb) of cargo for NASA over its 19 successful missions to the ISS.

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Meanwhile, with its first launch and landing – and a relatively gentle one, at that – under its belt, Falcon 9 B1059 should theoretically be a prime candidate for rapid turnaround, although there’s a good chance that SpaceX will hold the booster to support CRS-20, Cargo Dragon 1’s last planned launch. That mission is expected no earlier than March 2020.

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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 Roadster’s new patent preps white-knuckle speeds, keeping it grounded

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Credit: @BLKMDL3/Twitter

Ahead of its highly anticipated unveiling, Tesla’s upcoming Roadster received a new patent that aims to keep it grounded while enabling white-knuckle speeds.

The patent, which was granted on September 29, is titled “Electric Car Fan,” bluntly stating its design but not its purpose, which is further detailed in the text of the application. Interestingly, it comes two weeks before the Roadster event, which was delayed due to unfavorable weather on Thursday, which could cause issues, as Tesla revealed the event must be held outdoors.

The purpose is to solve a problem that is relatively unique to high-performance electric cars. Instant motor torque is useless if the tires cannot plant that force, and conventional wings and underbody tunnels generate downforce only when air is already rushing past the car. At launch, in slow corners, and under hard braking from modest speed, passive aerodynamic additions contribute essentially very little to downforce.

Tesla’s filing says that its fans can produce the downforce needed, independent of vehicle velocity, then ease off so the same hardware does not pile on drag at highway speeds, an issue that can come from excessive body modifications.

The hardware outlined in the patent is a ducted-fan package that is placed into the rear of the vehicle. An underbody inlet between the rear wheels feeds a duct that rises to a wide outlet in the diffuser. In that outlet are four axial fans, which are divided by vertical strakes. They will pull air from under the floor and press the chassis onto the pavement.

The language in the patent claims it can cut drag rather than add to it while simultaneously increasing downforce.

Tesla Roadster event requires restricted airspace, and the FAA obliges

The fans run from the high-voltage battery and a vehicle control system, so output can be modulated rather than left on as a fixed penalty.

There are additional strengths that can come from this design, like extra tire load at low speed, which can contribute to even more face-melting acceleration rates, decrease stopping distance, and sharper turn-in before a wing has air to work with. Adjustable fan speed lets the car add grip only when needed, so it can be catered to the force of a turn or acceleration.

These designs were previously used, and banned, in some competitive settings. The Brabham BT46B was banned in F1 competition for using a similar fan design and being labeled as too effective.

Tesla still lists the Roadster as having a sub-two-second 0-60 MPH time and a 250-plus-MPH top speed, and there are expectations for a SpaceX cold-gas thruster package that could not only increase acceleration but potentially cause the vehicle to hover.

It is important to note that a patent is not a production part, and packaging four fans in a rear diffuser, managing noise, and potential debris are all things Tesla must consider. With that being said, the patent being granted shows Tesla is designing the Roadster to go fast, but it is also attempting to use unique strategies to combat any issues it might have at those speeds.

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Investor's Corner

Tesla showrooms picked clean ahead of Q3 end as demand looks strong

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Credit: @thaichiminh1907/X

Tesla (NASDAQ: TSLA) showrooms have been picked clean ahead of the end of the third quarter of the year, as demand looks to be strong and delivery estimates for new vehicles are pushed into late 2026 and early 2027.

Tesla appears to have sold out of many of its Model 3 and Model Y trim levels in the United States, as only the Model Y RWD and Model Y All-Wheel-Drive are available for delivery before the end of the year.

Additionally, many showrooms are either completely empty or void of all but just one demo unit within the buildings themselves in an effort to bolster what could be one of Tesla’s best quarters in vehicle deliveries in recent memory.

Additionally, when I spoke to the guys at Tesla Mechanicsburg two weeks ago, when I returned the Model Y L, their third hauler of the week had just arrived, and every vehicle on it, along with every vehicle in their delivery lot, was accounted for and had a name attached to it for delivery.

Tesla saw a 25 percent increase in deliveries in Q2 compared to the same quarter the year before. The vast majority of the 480,126 units it delivered, 467,762 vehicles to be exact, were the Model 3 and Model Y.

In Q3 2025, Tesla delivered 497,099 vehicles, once again a figure that was dominated by the company’s two mass-market vehicles. Analysts have unusually wide predictions for this quarter, likely because so many firms missed the Q2 delivery figure by such a substantial margin; Wall Street predicted 408,000 cars, while Tesla delivered 480,000.

Goldman Sachs has Tesla slotted for 435,000 deliveries in Q3, while JPMorgan said it anticipates 482,000. The median guess is about 449,000 deliveries for Q3.

Interested in ordering a Tesla? Use my referral code for three free months of Full Self-Driving (Supervised) here.

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Lifestyle

Watch Tesla’s “guardian angel” FSD feature take over for collision evasion

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Tesla’s Automatic Collision Evasion feature can be seen in one of the first owner videos of it in action.

Tesla owner Spencer (@scotsrule08) posted on Monday that the feature “worked flawlessly,” saying FSD reengaged itself just as he was about to hit a curb. Ashok Elluswamy, who leads Tesla’s AI team, shared the clip and wrote, “A guardian angel always looking out for you.”

The video arrives in the middle of a staged rollout. Tesla first shipped Automatic Collision Evasion with FSD (Supervised) v14.3.9 in software update 2026.27.6 earlier this month, which Teslarati covered as it reached cars. Update 2026.27.10, which began going out on September 19, carried the feature improvements with FSD v14.3.10, according to release notes tracked by Not a Tesla App. The newer 2026.27.11 build is now reaching another wave of vehicles.


The feature only runs on HW4 vehicles, and it requires an active FSD purchase or subscription with both FSD (Supervised) and Automatic Emergency Braking enabled. HW3 owners receive FSD v14.2 Lite in the same updates, but that build does not include collision evasion.

Tesla’s release notes describe two triggers. The first is an imminent frontal collision that braking alone may not prevent, in which case the car can activate FSD to steer, brake or accelerate around the hazard. That scenario is limited to highways below 85 mph, with no pedestrians or cyclists detected and no slippery road surface. The second covers a driver who appears inattentive, such as reaching into the back seat, or who seems to have switched off FSD by accident. Spencer’s curb clip appears to fall into that second category.

Tesla plans big safety improvements for Full Self-Driving v15

Once the system takes over, the accelerator is muted and light brake input will not cancel the maneuver. Drivers need to apply firm, deliberate steering force to take back control, and the car chimes to hand control back once the danger has passed.

Elluswamy recently noted that earlier hazard prediction, faster reaction time and better collision avoidance would arrive with FSD v15, the next major version.

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