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SpaceX wins Sentinel 6B radar satellite launch contract
SpaceX has won a contract to launch the joint US-European Sentinel 6B radar satellite as early as November 2025.
Five years ago, NASA also chose SpaceX to launch Sentinel 6A, the first of two identical satellites designed to use radar altimeters to determine global sea levels more accurately than ever before. In October 2017, just half a year after SpaceX’s first Falcon 9 rocket booster reuse and well before the cost savings that followed were fully factored in, NASA awarded SpaceX $94 million to launch the 1.1-ton (~2500 lb) to a relatively low 1300-kilometer (~810 mi) orbit.
Five years and two months later, NASA has awarded SpaceX $97 million to launch a virtually identical satellite to the same orbit, from the same launch pad, with the same rocket. SpaceX, however, is far from the same company it was in 2017, and has effectively mastered Falcon booster and payload fairing reuse in the half-decade since.
The update that's rolling out to the fleet makes full use of the front and rear steering travel to minimize turning circle. In this case a reduction of 1.6 feet just over the air— Wes (@wmorrill3) April 16, 2024
Beginning in March 2017, SpaceX has reused Falcon boosters on 130 launches, including sensitive US military missions and even NASA astronaut launches. SpaceX has launched almost 70 internal Starlink missions (carrying more than 3600 SpaceX-built satellites) without bankrupting the company. CEO Elon Musk has stated that the marginal cost of a barebones Falcon 9 launch is just $15 million, while another executive once pegged the total cost of a Falcon 9 launch with flight-proven hardware at $28 million.
Perhaps most significantly, SpaceX won a contract in 2019 to launch NASA’s tiny IXPE X-ray telescope on Falcon 9 for only $50 million. SpaceX completed the mission in December 2021, launching the 330-kilogram (~730 lb) spacecraft into a roughly 600-kilometer (~370 mi) orbit. IXPE was initially expected to launch on Aerojet Rocketdyne’s troubled air-launched Pegasus XL rocket, which last launched a small NASA spacecraft for about $55 million.
Writ large, that may be the best explanation for why SpaceX and its executives – both of which have relentlessly reiterated that the company’s purpose is to radically reduce the cost of orbital launches – don’t feel pressure to translate those major cost decreases into major price cuts. Put simply, despite the fact that SpaceX has openly discussed its intentions for more than a decade, there isn’t a rocket on Earth that can beat Falcon 9’s combination of performance, cadence, reliability, and affordability.
In lieu of even a hint of competitive pressure from the rest of the industry, particularly for contracts limited to US industry, SpaceX appears to have decided that the profits from charging as much as possible outweigh the cynicism those actions could convey. To SpaceX’s credit, the reality is also more gray than some of the limited data might imply. Over the last three years, SpaceX’s prices for smallsat rideshare customers have repeatedly decreased and become more flexible. Additionally, accounting for five years of inflation, SpaceX’s $94 million Sentinel 6A contract would be worth about $114 million today, meaning that its $97 million Sentinel 6B launch contract technically represents a modest 15% discount.
It’s also likely that SpaceX’s main competitors, ULA and Arianespace, would have charged tens of millions of dollars more to launch Sentinel 6A or 6B on their current or next-generation rockets. But their existing rockets have no spare capacity for new contracts and their new Vulcan and Ariane 6 rockets have yet to fly, leaving SpaceX without any real competition.
For better or worse, it appears that Falcon 9 rideshare customers and SpaceX’s own Starlink constellation are the only major beneficiaries of Falcon 9’s extraordinary newfound affordability. With potential competitors like Rocket Lab’s Neutron, Relativity’s Terran-R, Blue Origin’s New Glenn, and ULA’s semi-reusable Vulcan variant all years from market entrance, that’s unlikely to change until the mid-to-late 2020s. Until then, even though SpaceX’s pricing is unlikely to revolutionize others’ access to space, Falcon 9 will remain an exceptionally affordable and available option for all launch customers – including NASA and ESA.
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Swedish unions consider police report over Tesla Megapack Supercharger
The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm.
Swedish labor unions are considering whether to file a police report related to a newly opened Tesla Megapack Supercharger near Stockholm, citing questions about how electricity is supplied to the site. The matter has also been referred to Sweden’s energy regulator.
Tesla Megapack Supercharger
The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm. Unlike traditional charging stations, the site is powered by an on-site Megapack battery rather than a direct grid connection. Typical grid connections for Tesla charging sites in Sweden have seen challenges for nearly two years due to union blockades.
Swedish labor union IF Metall has submitted a report to the Energy Market Inspectorate, asking the authority to assess whether electricity supplied to the battery system meets regulatory requirements, as noted in a report from Dagens Arbete (DA). The Tesla Megapack on the site is charged using electricity supplied by a local company, though the specific provider has not been publicly identified.
Peter Lydell, an ombudsman at IF Metall, issued a comment about the Tesla Megapack Supercharger. “The legislation states that only companies that engage in electricity trading may supply electricity to other parties. You may not supply electricity without a permit, then you are engaging in illegal electricity trading. That is why we have reported this… This is about a company that helps Tesla circumvent the conflict measures that exist. It is clear that it is troublesome and it can also have consequences,” Lydell said.
Police report under consideration
The Swedish Electricians’ Association has also examined the Tesla Megapack Supercharger and documented its power setup. As per materials submitted to the Energy Market Inspectorate, electrical cables were reportedly routed from a property located approximately 500 meters from the charging site.
Tomas Jansson, ombudsman and deputy head of negotiations at the Swedish Electricians’ Association, stated that the union was assessing whether to file a police report related to the Tesla Megapack Supercharger. He also confirmed that the electricians’ union was coordinating with IF Metall about the matter. “We have a close collaboration with IF Metall, and we are currently investigating this. We support IF Metall in their fight for fair conditions at Tesla,” Jansson said.
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Tesla HW4.5 spotted in new Model Y, triggers speculation
Owners taking delivery of recent Model Y builds have identified components labeled “AP45.”
Tesla’s Hardware 4.5 computer appears to have surfaced in newly delivered Model Y vehicles, prompting fresh speculation about an interim upgrade ahead of the company’s upcoming AI5 chip.
Owners taking delivery of recent Model Y builds have identified components labeled “AP45,” suggesting Tesla may have quietly started rolling out revised autonomy hardware.
Hardware 4.5 appears in new Model Y units
The potential Hardware 4.5 sighting was first reported by Model Y owner @Eric5un, who shared details of a Fremont-built 2026 Model Y AWD Premium delivered this January. As per the Model Y owner, the vehicle includes a new front camera housing and a 16-inch center display, along with an Autopilot computer labeled “AP45” and part number 2261336-02-A.
The Tesla owner later explained that he confirmed the part number by briefly pulling down the upper carpet liner below the Model Y’s glovebox. Other owners soon reported similar findings. One Model Y Performance owner noted that their December build also appeared to include Hardware 4.5, while another owner of an Austin-built Model Y Performance reported spotting the same “AP45” hardware.
These sightings suggest that Tesla may already be installing revised FSD computers in its new Model Y batches, despite the company not yet making any formal announcements about Hardware 4.5.
What Hardware 4.5 could represent
Clues about Hardware 4.5 have surfaced previously in Tesla’s Electronic Parts Catalog. As reported by NotATeslaApp, the catalog has listed a component described as “CAR COMPUTER – LEFT HAND DRIVE – PROVISIONED – HARDWARE 4.5.” The component, which features the part number 2261336-S2-A, is priced at $2,300.00.
Longtime Tesla hacker @greentheonly has noted that Tesla software has contained references to a possible three-SoC architecture for some time. Previous generations of Tesla’s FSD computer, including Hardware 3 and Hardware 4, use a dual-SoC design for redundancy. A three-SoC layout could allow for higher inference throughput and improved fault tolerance.
Such an architecture could also serve as a bridge to AI5, Tesla’s next-generation autonomy chip expected to enter production later in 2026. As Tesla’s neural networks grow larger and more computationally demanding, Hardware 4.5 may provide additional headroom for vehicles built before AI5 becomes widely available.
Elon Musk
Elon Musk’s Grokipedia is getting cited by OpenAI’s ChatGPT
Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia.
Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia, an AI-generated encyclopedia developed by rival xAI, which was founded by Elon Musk. The citations appeared across a limited set of queries.
Reports about the matter were initially reported by The Guardian.
Grokipedia references in ChatGPT
Grokipedia launched in October as part of xAI’s effort to build an alternative to Wikipedia, which has become less centrist over the years. Unlike Wikipedia, which is moderated and edited by humans, Grokipedia is purely AI-powered, allowing it to approach topics with as little bias as possible, at least in theory. This model has also allowed Grokipedia to grow its article base quickly, with recent reports indicating that it has created over 6 million articles, more than 80% of English Wikipedia.
The Guardian reported that ChatGPT cited Grokipedia nine times across responses to more than a dozen user questions during its tests. As per the publication, the Grokipedia citations did not appear when ChatGPT was asked about high-profile or widely documented topics. Instead, Grokipedia was referenced in responses to more obscure historical or biographical claims. The pattern suggested selective use rather than broad reliance on the source, at least for now.
Broader Grokipedia use
The Guardian also noted that Grokipedia citations were not exclusive to ChatGPT. Anthropic’s AI assistant Claude reportedly showed similar references to Grokipedia in some responses, highlighting a broader issue around how large language models identify and weigh publicly available information.
In a statement to The Guardian, an OpenAI spokesperson stated that ChatGPT “aims to draw from a broad range of publicly available sources and viewpoints.” “We apply safety filters to reduce the risk of surfacing links associated with high-severity harms, and ChatGPT clearly shows which sources informed a response through citations,” the spokesperson stated.
Anthropic, for its part, did not respond to a request for comment on the matter. As for xAI, the artificial intelligence startup simply responded with a short comment that stated, “Legacy media lies.”
Swedish unions consider police report over Tesla Megapack Supercharger
Tesla HW4.5 spotted in new Model Y, triggers speculation
