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SpaceX's three surviving thrice-flown Block 5 boosters - B1048, B1049, and B1046 - are pictured here in various stages of recovery. (Teslarati, Pauline Acalin) SpaceX's three surviving thrice-flown Block 5 boosters - B1048, B1049, and B1046 - are pictured here in various stages of recovery. (Teslarati, Pauline Acalin)

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SpaceX sets new Falcon 9 Block 5 reusability milestones for second half of 2019

Falcon 9 B1048, B1049, and B1046 pictured in various stages of their most recent launches. Together, the three have supported nine successful orbital-class launches. (Tom Cross & Pauline Acalin)

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Speaking at 2019’s Asia-Pacific Satellite (APSAT) Conference, SpaceX Vice President of Commercial Sales Jonathan Hofeller – squeezed into a sea of breaking-news updates – announced that the company plans to launch the same Falcon 9 Block 5 booster for the fifth (or sixth) time by the end of 2019.

Just an add-on at the end of a number of updates focused on SpaceX’s next-generation Starship/Super Heavy rocket, the phrasing reported by SpaceNews.com technically means that there are plans for a Falcon 9 booster to launch for the sixth time in the second half of 2019. The demonstration of such an extreme level of operational reusability barely 18 months after Falcon 9 Block 5’s debut would make it clear that SpaceX’s latest Falcon upgrade has been a resounding success. In line with those positive signs, Hofeller also noted that SpaceX is already starting to transfer the fruits of those labors to its customers by permanently lowering the base price of Falcon 9 launch contracts.

Most recently, SpaceX flew the same Falcon 9 booster for the third time (B1049) in support of its first dedicated Starlink launch, May 2019. (SpaceX/Teslarati)

Block 5 off to a spectacular start

First reported on by SpaceNews’ Caleb Henry, one of a few spaceflight journalists able to attend 2019’s Jakarta, Indonesia-based APSAT conference, details about the near-term future of Falcon 9 Block 5 reusability milestones were effectively tacked on at the end of much higher-profile breaking-news tidbits. Although wildly ambitious Starship goals led headlines (stay tuned for Teslarati’s own analysis later this week), the fact remains that ambitious development goals are inherently tenuous and likely to slip, particularly when the subject is large-scale, fully-reusable launch vehicles developed from a nearly blank slate.

What is not up for debate, however, is the fact that SpaceX’s Falcon 9 Block 5 upgrade is already flying routinely and reliably. After a successful debut in May 2018, Block 5 took over all SpaceX launches less than two months later. Since then, a total of 12 freshly-built Block 5 boosters have supported 16 Falcon 9 and 2 Falcon Heavy launches, ten – more than half – of which involved flight-proven boosters. According to official statements made recently by SpaceX executives, Block 5 boosters are expected to support an additional 12-19* launches in the second half of 2019.

*Derived by stacking “2-6 dedicated Starlink launches” and SpaceX’s 2019 target of 18-21 nonStarlink launches

Moving into 2019, SpaceX is likely just months away from its next triple and quadruple-reuse milestones.
Falcon 9 B1046 became the first SpaceX booster to launch three separate times in early-December 2018. (Pauline Acalin)

Tied directly to claims that the same Falcon 9 Block 5 booster will launch for the fifth or sixth time by the end of 2019, SpaceX already has three Falcon 9 boosters that have each completed a trio of launches, as well as an additional five with either one or two launches under their belts. Pictured at the top of the article, all three thrice-flown Falcon 9 boosters – B1046, B1048, and B1049 – could arguably be selected to become the next pathfinder as SpaceX prepares to put boosters through their fourth launches and beyond.

Rumored to be assigned to Crew Dragon’s in-flight abort (IFA) test prior to a major capsule anomaly on April 20th, B1046 could be off the manifest if SpaceX is confident that said IFA test can still be performed within the next several months. It’s currently unclear if that is a viable option for SpaceX’s Crew Dragon schedule, likely to remain uncertain until the failure investigation is fully completed and any necessary design/hardware/software fixes have been implemented. B1046 completed its third launch in December 2018 (a full six months ago), followed by B1048 in February 2019 and B1049 in May 2019. Although the “unknown territory” aspect of Block 5 reuse milestones is becoming less noteworthy, SpaceX is still likely to treat B104X’s fourth launch as a pathfinder, requiring extra time to dot I’s and cross T’s. With B1046 and B1048 potentially ready to go, that milestone could come any time now.

Falcon 9 B1046 lands aboard drone ship OCISLY after its third successful launch in December 2018, a reusability milestone for SpaceX. (SpaceX)

SpaceX customers already reaping financial benefits

Meanwhile, although certain heads-in-sand competitors continue to act and claim otherwise, SpaceX has reportedly normalized earlier prices for customers flying on flight-proven milestone missions. Speaking at APSAT, SpaceX’s Jonathan Hofeller indicated that that pricing is now the company’s “normal pricing”, pushing Falcon 9’s base price as low as ~$50M according to comments CEO Elon Musk made about a year ago. Two years prior to those comments and about six months prior to SpaceX’s first-ever booster reuse, COO and President Gwynne Shotwell reported that the company was offering discounts of ~10% for customers willing to contract launches on flight-proven Falcon 9 boosters.

In other words, SpaceX has cut Falcon 9’s base launch costs by anywhere from 10-20% over the last three years, a period in which the Falcon 9 V1.2 Full Thrust rocket’s capabilities were also dramatically upgraded from Block 1 (debut: December 2015) through Block 5 (debut: May 2018). Speaking during a press conference focused on Falcon 9 Block 5’s launch debut, CEO Elon Musk estimated that SpaceX has spent more than $1 billion to develop Falcon 9 reusability, while he previously estimated Falcon Heavy’s development costs to be well north of ~$500M. Musk and other execs have previously confirmed that SpaceX means to recoup some or all of that investment, indicating that the current margins of Falcon 9 launch contracts must be extremely favorable.

A remote camera set up by Teslarati photographer Pauline Acalin captured this incredible view of all 27 Merlin 1D engines powering Falcon Heavy’s first stage. (Pauline Acalin)

SpaceX has a healthy commercial manifest and will need to support dozens to hundreds of its own dedicated Starlink launches in order to orbit an operational and profitable constellation.

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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 FSD (Supervised) fleet passes 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.

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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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