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Watch SpaceX’s Inspiration4 mission launch four private astronauts live [webcast]
Update: SpaceX, Falcon 9, Crew Dragon, the crew, and the weather remain on track for the company’s historic Inspiration4 mission, which is set to become the first dedicated orbital space tourism launch in history.
SpaceX has begun more than four hours of live coverage for the mission, which remains on track to launch no earlier than just before 8:03 pm EDT (00:03 UTC). Tune in below to watch the launch live!
In less than 12 hours, SpaceX will kick off a more than four-hour webcast covering Crew Dragon’s historic Inspiration4 mission – set to be the world’s first all-private orbital astronaut launch and the highest private citizens have ever flown.
Safely tucked inside a once-flown orbital Dragon capsule and riding on a twice-flown Falcon 9 booster, the latter a first for SpaceX, Inspiration4’s approximately five-hour launch window is scheduled to open just before 8:03 pm EDT on Wednesday, September 15th (00:03 UTC 16 Sept). Barring weather or technical delays (or clouds in general), a liftoff ~35 minutes after sunset could produce spectacular views for anyone watching from the ground as Falcon 9 and its immense exhaust plume ascend back into sunlight.
No matter the view, though, Inspiration4 will be a milestone both for SpaceX, spaceflight, and orbital tourism as a whole.
The mission will both be SpaceX’s first private astronaut launch of any kind and the first all-private orbital astronaut launch in history. In a single mission, SpaceX will singlehandedly boost the number of private astronauts that have reached orbit by 50% – a feat only eight other people have achieved. If all goes according to plan, it will also be the first time ever that private citizens have successfully flown to orbit and back on or in a flight-proven rocket or flight-proven spacecraft.
According to SpaceX, Falcon 9 will launch Crew Dragon to an apogee of around 575 km (~357 mi) – more than a third higher than the ISS, the highest humans have flown since 2009, and the highest altitude ever reached by private astronauts. With Inspiration4, SpaceX will also launch astronauts on a twice-flown Falcon 9 booster and simultaneously operate three Dragon spacecraft in orbit for the first time ever, pushing the company’s own technical abilities forward.

Despite the myriad impressive firsts Inspiration4 is set to mark, one thing is certain: it won’t be the last time private astronauts head to (real) space on a SpaceX spacecraft. Already, SpaceX has contracts from Axiom Space for four dedicated private launches to the International Space Station in 2022 and 2023, each carrying up to four private astronauts. Space Adventures – responsible for organizing all eight other non-SpaceX private orbital astronaut launches in history – also has plans to launch a private crew of four to unprecedented heights, though it’s unclear if the mission has secured any customers.
I asked about future non-government missions for SpaceX:
Reed says “the Dragon manifest is getting busier by the minute” with “a growing backlog of commercial astronaut missions.”— Michael Sheetz (@thesheetztweetz) September 14, 2021
Reed says SpaceX is “gearing up” to be able to fly 4-6 Dragon missions per year at minimum.— Michael Sheetz (@thesheetztweetz) September 14, 2021
In an official Q&A held on Tuesday, Benji Reed – SpaceX director of Dragon mission management – said that the company’s “Dragon manifest is getting busier by the minute” with “a growing backlog of commercial astronaut mission.” Reed also expects SpaceX to soon be capable of a minimum of 4-6 Dragon launches annually. Axiom-1, the first fully private astronaut mission to the International Space Station (ISS), is scheduled to launch no earlier than January 2022.
As for Inspiration4, Jared Isaacman, Sian Proctor, Haley Arceneaux, and Chris Sembroski will spend a bit less than three days in orbit and are expected to perform a few small science experiments, take plenty of photos, and host a couple live events over the course of the mission. They’ll also get to take advantage of Crew Dragon’s ‘cupola’ – designed specifically by SpaceX for Inspiration4 and set to be the largest window ever flown in space. A small camera inside the nosecone that will protect that window during ascent and reentry will hopefully allow the crew to take self-portraits with Earth as a spectacular backdrop.


If all goes according to plan, Dragon will reenter and return its private astronauts to Earth around 7pm EDT on Saturday, September 18th. SpaceX is expected to provide live coverage of Inspiration4’s launch and reentry and the launch webcast will begin around 4pm EDT (20:00 UTC), four hours before liftoff.
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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.
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.
Elon Musk
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.”
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.
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.
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.
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.
“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.
“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.