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SpaceX rocket test-fired for first Starlink launch since in-flight engine failure

Pictured here during its third launch, Falcon 9 booster B1051 is scheduled for its fourth launch on April 23rd. (Richard Angle)

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Just a month after an automatic launch abort sequence and subsequent in-flight engine failure, the SpaceX Falcon 9 is ready to return to flight. SpaceX’s sixth Starlink V1.0 and seventh overall launch of 60 Starlink satellites – initially expected on April 16th later delayed to April 23rd – will mark the triumphant return of a flight-proven booster.

Early on Thursday, April 16th – a week ahead of the scheduled launch attempt – the flight-proven B1051 Falcon 9 booster fully stacked with the integrated payload of 60 flat-stacked Starlink satellites, rolled out to Launch Complex 39-A at Kennedy Space Center. Just over twenty-four hours later on Friday, April 17th, the rocket and payload were raised into the vertical launching position. At noon on Friday, SpaceX teams conducted a wet dress rehearsal fully fueling the first stage booster with propellant – rocket grade kerosene (RP-1) and liquid oxygen (LOX) – before successfully conducting a full-duration, pre-launch ignition of all nine Merlin 1D engines while holding the rocket in place – called a static fire.

Shortly after the test completion, SpaceX confirmed the targeted Thursday, April 23rd launch attempt scheduled for 3:16 pm EDT from LC-39A via the company’s Twitter account. Along with the launch date, SpaceX confirmed that the upcoming Starlink-6 mission (seventh overall) will be the fourth attempted launch and recovery of booster B1051. This booster previously supported launches from three different launchpads in Florida and California. Perhaps most notably, it supported the successful first uncrewed demonstration mission of the Crew Dragon capsule in March of 2019.

SpaceX also confirmed that the protective nosecone encapsulating the satellite payload, called the payload fairing, is also recovered and reused flight-proven hardware. To date, SpaceX has reused fairing halves twice. Both instances have been conducted on internal Starlink missions, one in November 2019 and the most recent on March 18th’s Starlink-5 mission. Both featured fairing halves that were recovered after landing softly in the water of the Atlantic ocean. Ultimately, only the fairing halves of the most recent March 18th Starlink-5 mission were successfully recovered. The recovery attempt during November’s mission was called off due to rough seas.

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The SpaceX fairing recovery vessel GO Ms. Tree returns to Port Canaveral with a recovered payload fairing half after a Starlink mission in March 2020. (Richard Angle for Teslarati)

According to SpaceX, April 23rd’s upcoming Starlink-6 mission will feature fairing halves recovered from the AMOS-17 mission launched in August of 2019. As previously covered by Teslarati, the mission resulted in a fairing half caught in a large net mounted atop one of the company’s fairing recovery vessels, GO Ms. Tree. The other half was scooped up after a gentle water landing. Starlink-6 will be the first time that a fairing half caught in a net is re-used in conjunction with a half recovered from the water. If the fairing halves perform nominally, as expected, it will help SpaceX to push the envelope of flight-proven hardware reuse even further.

Closely mirroring the Starlink-5 mission, SpaceX will once again launch from LC-39A and utilize a slightly altered mission profile. This will allow the Falcon 9’s second stage to deliver the 60 flat-stack satellites to an elliptical, rather than circular, orbit intended to reduce stress during booster re-entry and landing. Although used with previous missions, this particular mission profile has yet to result in a successful booster recovery.

If successful, Starlink-6 will be the first time a booster lands on the autonomous spaceport drone ship “Of Course I Still Love You” since this boosters last landing in January 2020 following the successful Starlink-4 mission. As of Sunday morning, April 19th, “Of Course I Still Love You” departed Port Canaveral to travel to the recovery zone some 629km downrange ahead of Thursday’s launch attempt. The crew recovery vessel, GO Quest, followed shortly thereafter. The two fairing recovery vessels GO Ms. Tree and GO Ms. Chief are expected to leave port early in the week as the ships are built for speed and will reach the destination much quicker.

Check out Teslarati’s newsletters for prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket launch and recovery processes.

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Tesla FSD (Supervised) fleet passes 8.4 billion cumulative miles

Tesla’s Full Self-Driving (Supervised) system has now surpassed 8.4 billion cumulative miles.

The figure appears on Tesla’s official safety page, which tracks performance data for FSD (Supervised) and other safety technologies.

Tesla has long emphasized that large-scale real-world data is central to improving its neural network-based approach to autonomy. Each mile driven with FSD (Supervised) engaged contributes additional edge cases and scenario training for the system.

The milestone also brings Tesla closer to a benchmark previously outlined by CEO Elon Musk. Musk has stated that roughly 10 billion miles of training data may be needed to achieve safe unsupervised self-driving at scale, citing the “long tail” of rare but complex driving situations that must be learned through experience.

The growth curve of FSD Supervised’s cumulative miles over the past five years has been notable. 

As noted in data shared by Tesla watcher Sawyer Merritt, annual FSD (Supervised) miles have increased from roughly 6 million in 2021 to 80 million in 2022, 670 million in 2023, 2.25 billion in 2024, and 4.25 billion in 2025. In just the first 50 days of 2026, Tesla owners logged another 1 billion miles.

At the current pace, the fleet is trending towards hitting about 10 billion FSD Supervised miles this year. The increase has been driven by Tesla’s growing vehicle fleet, periodic free trials, and expanding Robotaxi operations, among others.

With the fleet now past 8.4 billion cumulative miles, Tesla’s supervised system is approaching that threshold, even as regulatory approval for fully unsupervised deployment remains subject to further validation and oversight.

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Credit: Tesla

Tesla’s Full Self-Driving (Supervised) system has now surpassed 8.4 billion cumulative miles.

The figure appears on Tesla’s official safety page, which tracks performance data for FSD (Supervised) and other safety technologies.

Tesla has long emphasized that large-scale real-world data is central to improving its neural network-based approach to autonomy. Each mile driven with FSD (Supervised) engaged contributes additional edge cases and scenario training for the system.

Credit: Tesla

The milestone also brings Tesla closer to a benchmark previously outlined by CEO Elon Musk. Musk has stated that roughly 10 billion miles of training data may be needed to achieve safe unsupervised self-driving at scale, citing the “long tail” of rare but complex driving situations that must be learned through experience.

The growth curve of FSD Supervised’s cumulative miles over the past five years has been notable. 

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As noted in data shared by Tesla watcher Sawyer Merritt, annual FSD (Supervised) miles have increased from roughly 6 million in 2021 to 80 million in 2022, 670 million in 2023, 2.25 billion in 2024, and 4.25 billion in 2025. In just the first 50 days of 2026, Tesla owners logged another 1 billion miles.

At the current pace, the fleet is trending towards hitting about 10 billion FSD Supervised miles this year. The increase has been driven by Tesla’s growing vehicle fleet, periodic free trials, and expanding Robotaxi operations, among others.

With the fleet now past 8.4 billion cumulative miles, Tesla’s supervised system is approaching that threshold, even as regulatory approval for fully unsupervised deployment remains subject to further validation and oversight.

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Elon Musk fires back after Wikipedia co-founder claims neutrality and dubs Grokipedia “ridiculous”

Musk’s response to Wales’ comments, which were posted on social media platform X, was short and direct: “Famous last words.”

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UK Government, CC BY 2.0 , via Wikimedia Commons

Elon Musk fired back at Wikipedia co-founder Jimmy Wales after the longtime online encyclopedia leader dismissed xAI’s new AI-powered alternative, Grokipedia, as a “ridiculous” idea that is bound to fail.

Musk’s response to Wales’ comments, which were posted on social media platform X, was short and direct: “Famous last words.”

Wales made the comments while answering questions about Wikipedia’s neutrality. According to Wales, Wikipedia prides itself on neutrality. 

“One of our core values at Wikipedia is neutrality. A neutral point of view is non-negotiable. It’s in the community, unquestioned… The idea that we’ve become somehow ‘Wokepidea’ is just not true,” Wales said.

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When asked about potential competition from Grokipedia, Wales downplayed the situation. “There is no competition. I don’t know if anyone uses Grokipedia. I think it is a ridiculous idea that will never work,” Wales wrote.

After Grokipedia went live, Larry Sanger, also a co-founder of Wikipedia, wrote on X that his initial impression of the AI-powered Wikipedia alternative was “very OK.”

“My initial impression, looking at my own article and poking around here and there, is that Grokipedia is very OK. The jury’s still out as to whether it’s actually better than Wikipedia. But at this point I would have to say ‘maybe!’” Sanger stated.

Musk responded to Sanger’s assessment by saying it was “accurate.” In a separate post, he added that even in its V0.1 form, Grokipedia was already better than Wikipedia.

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During a past appearance on the Tucker Carlson Show, Sanger argued that Wikipedia has drifted from its original vision, citing concerns about how its “Reliable sources/Perennial sources” framework categorizes publications by perceived credibility. As per Sanger, Wikipedia’s “Reliable sources/Perennial sources” list leans heavily left, with conservative publications getting effectively blacklisted in favor of their more liberal counterparts.

As of writing, Grokipedia has reportedly surpassed 80% of English Wikipedia’s article count.

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Tesla Sweden appeals after grid company refuses to restore existing Supercharger due to union strike

The charging site was previously functioning before it was temporarily disconnected in April last year for electrical safety reasons.

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Credit: Tesla Charging

Tesla Sweden is seeking regulatory intervention after a Swedish power grid company refused to reconnect an already operational Supercharger station in Åre due to ongoing union sympathy actions.

The charging site was previously functioning before it was temporarily disconnected in April last year for electrical safety reasons. A temporary construction power cabinet supplying the station had fallen over, described by Tesla as occurring “under unclear circumstances.” The power was then cut at the request of Tesla’s installation contractor to allow safe repair work.

While the safety issue was resolved, the station has not been brought back online. Stefan Sedin, CEO of Jämtkraft elnät, told Dagens Arbete (DA) that power will not be restored to the existing Supercharger station as long as the electric vehicle maker’s union issues are ongoing. 

“One of our installers noticed that the construction power had been backed up and was on the ground. We asked Tesla to fix the system, and their installation company in turn asked us to cut the power so that they could do the work safely. 

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“When everything was restored, the question arose: ‘Wait a minute, can we reconnect the station to the electricity grid? Or what does the notice actually say?’ We consulted with our employer organization, who were clear that as long as sympathy measures are in place, we cannot reconnect this facility,” Sedin said. 

The union’s sympathy actions, which began in March 2024, apply to work involving “planning, preparation, new connections, grid expansion, service, maintenance and repairs” of Tesla’s charging infrastructure in Sweden.

Tesla Sweden has argued that reconnecting an existing facility is not equivalent to establishing a new grid connection. In a filing to the Swedish Energy Market Inspectorate, the company stated that reconnecting the installation “is therefore not covered by the sympathy measures and cannot therefore constitute a reason for not reconnecting the facility to the electricity grid.”

Sedin, for his part, noted that Tesla’s issue with the Supercharger is quite unique. And while Jämtkraft elnät itself has no issue with Tesla, its actions are based on the unions’ sympathy measures against the electric vehicle maker. 

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“This is absolutely the first time that I have been involved in matters relating to union conflicts or sympathy measures. That is why we have relied entirely on the assessment of our employer organization. This is not something that we have made any decisions about ourselves at all. 

“It is not that Jämtkraft elnät has a conflict with Tesla, but our actions are based on these sympathy measures. Should it turn out that we have made an incorrect assessment, we will correct ourselves. It is no more difficult than that for us,” the executive said. 

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