News
SpaceX’s BFR and Raptor deemed “science-fiction” by French space agency manager
Speaking in a September 7th interview with French newspaper Courrier International, Dr. Francis Rocard – director of French space agency CNES’ solar system exploration program – had little good to say about SpaceX and CEO Elon Musk’s long-term ambitions in space, going so far as to question the CEO’s driving ethics and label the company’s next-generation rocket and propulsion system “science-fiction”.
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- Ariane’s lineage. (ESA)
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- Ariane 62 and 64. (ESA)
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- Falcon 9 Block 5 will be absolutely critical to the success (and even the basic completion) of Starlink. (Tom Cross)
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- BFR (2018) breaks through a cloud layer shortly after launch. (SpaceX)
Pehaps best known for its involvement in interplanetary space exploration missions like Rosetta and European launch provider Arianespace, CNES is providing a bit less than 25% of the $3.8 billion ESA is spending to develop the Ariane 6 rocket, as well as another $700m for the construction of a new launch pad and support facilities at the space agency’s French Guiana spaceport.
ArianeGroup, a public-private partnership and company, plans to begin replacing its highly successful Ariane 5 rocket with Ariane 6 as early as 2020 and is providing roughly $475 million of its own money to develop that launch vehicle. Ariane 5, which just completed its 100th successful launch on September 25th, costs between $165m and $220m (2016) per launch and is fully expendable, while Ariane 6 – also fully expendable – is targeting a slightly more practical cost between $100m and $130m per flight.
Differences between Ariane 5 and Ariane 6 are exceedingly minor, with the majority of differences found in the cost of each rocket. The end result for customers is essentially the exact same performance of Ariane 5 (or significantly worse) for at most a 40% discount. Ariane 6 will have light (2 solid rocket boosters) and heavy (4 SRBs) variants, and the light variant (known as Ariane 62) is expected to cost no more than 20% less than its heavy cousin while offering considerably less than half the performance.
This poses a major issue for ArianeGroup, as its current Ariane 5 only marginally functions as a commercial rocket thanks to an extensive reliance on dual-satellite launches, in which two different payloads are manifested on the same rocket in order to halve the cost each customer must pay. According to Arianespace, the best possible price a customer might wind up paying for one of Ariane 5’s two slots is ~$60m, essentially the same as the base price for a dedicated Falcon 9 launch. The problem, however, lies in the reality that Ariane 62 will be effectively incapable of performing the same dual-manifest launches but end up costing significantly more for a dedicated launch than the $60m-$100m Ariane 5 customers currently expect.
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- This exploded view shows how Ariane 5 launches two large satellites at once. (ESA)
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- A render showing Ariane 64. (Arianespace)
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- A gif of Raptor throttling over the course of a 90+ second static-fire test in McGregor, Texas. (SpaceX)
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- Yusaku Maezawa stands on the first BFR composite tank/fuselage section prior to his Sept. 17 announcement. (Yusaku Maezawa)
Ariane 64, at most a 40% cheaper replacement for Ariane 5, doesn’t even have a tentative launch debut date set, while Ariane 62 is pencilled in for a 2020 debut with several more launches soon after, potentially ramping up to a dozen missions per year in the mid-2020s. Rocard, while not directly involved in CNES’ own tenative work with reusable rocket experiments or its relationship with Ariane rockets, placed himself in an inopportune position by so bluntly dismissed and demeaning the near to long-term ambitions of SpaceX.
Not only are BFR and Raptor quite literally real enough to touch, but SpaceX’s Falcon 9 Block 5 is beginning to ramp up launch and reuse activities, placing the launch upstart in a position where the long-term survival – let alone success – of ArianeGroup and its Ariane 6 rockets seems no less likely than SpaceX’s realization of its Mars aspirations in the 2020s and 2030s. May the best rockets win.
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Tesla Full Self-Driving shows confident navigation in heavy snow
So far, from what we’ve seen, snow has not been a huge issue for the most recent Full Self-Driving release. It seems to be acting confidently and handling even snow-covered roads with relative ease.
Tesla Full Self-Driving is getting its first taste of Winter weather for late 2025, as snow is starting to fall all across the United States.
The suite has been vastly improved after Tesla released v14 to many owners with capable hardware, and driving performance, along with overall behavior, has really been something to admire. This is by far the best version of FSD Tesla has ever released, and although there are a handful of regressions with each subsequent release, they are usually cleared up within a week or two.
Tesla is releasing a modified version of FSD v14 for Hardware 3 owners: here’s when
However, adverse weather conditions are something that Tesla will have to confront, as heavy rain, snow, and other interesting situations are bound to occur. In order for the vehicles to be fully autonomous, they will have to go through these scenarios safely and accurately.
One big issue I’ve had, especially in heavy rain, is that the camera vision might be obstructed, which will display messages that certain features’ performance might be degraded.
So far, from what we’ve seen, snow has not been a huge issue for the most recent Full Self-Driving release. It seems to be acting confidently and handling even snow-covered roads with relative ease:
FSD 14.1.4 snow storm Ontario Canada pic.twitter.com/jwK1dLYT0w
— Everything AI (@mrteslaspace) November 17, 2025
I found the steepest, unplowed hill in my area and tested the following:
• FSD 14.2.1 on summer tires
• FSD 14.2.1 on winter tires
• Manual drivingBut I think the most impressive part was how FSD went DOWN the hill. FSD in the snow is sublime $TSLA pic.twitter.com/YMcN7Br3PU
— Dillon Loomis (@DillonLoomis) December 2, 2025
Well.. I couldn’t let the boys have all the fun!
Threw the GoPro up and decided to FSD v14.2.1 in the snow. Roads were not compacted like the other day, a little slippery, but overall doable at lower speeds. Enjoy the video and holiday music 🎶
Liked:
Took turns super slow… pic.twitter.com/rIAIeh3Zu3— 🦋Diana🦋 (@99_Colorado) December 3, 2025
Moving into the winter months, it will be very interesting to see how FSD handles even more concerning conditions, especially with black ice, freezing rain and snow mix, and other things that happen during colder conditions.
We are excited to test it ourselves, but I am waiting for heavy snowfall to make it to Pennsylvania so I can truly push it to the limit.
News
Tesla hosts Rome Mayor for first Italian FSD Supervised road demo
The event marked the first time an Italian mayor tested the advanced driver-assistance system in person in Rome’s urban streets.
Tesla definitely seems to be actively engaging European officials on FSD’s capabilities, with the company hosting Rome Mayor Roberto Gualtieri and Mobility Assessor Eugenio Patanè for a hands-on road demonstration.
The event marked the first time an Italian mayor tested the advanced driver-assistance system in person in Rome’s urban streets. This comes amid Tesla’s push for FSD’s EU regulatory approvals in the coming year.
Rome officials experience FSD Supervised
Tesla conducted the demo using a Model 3 equipped with Full Self-Driving (Supervised), tackling typical Roman traffic including complex intersections, roundabouts, pedestrian crossings and mixed users like cars, bikes and scooters.
The system showcased AI-based assisted driving, prioritizing safety while maintaining flow. FSD also handled overtakes and lane decisions, though with constant driver supervision.
Investor Andrea Stroppa detailed the event on X, noting the system’s potential to reduce severe collision risks by up to seven times compared to traditional driving, based on Tesla’s data from billions of global fleet miles. The session highlighted FSD’s role as an assistance tool in its Supervised form, not a replacement, with the driver fully responsible at all times.
Path to European rollout
Tesla has logged over 1 million kilometers of testing across 17 European countries, including Italy, to refine FSD for local conditions. The fact that Rome officials personally tested FSD Supervised bodes well for the program’s approval, as it suggests that key individuals are closely watching Tesla’s efforts and innovations.
Assessor Patanè also highlighted the administration’s interest in technologies that boost road safety and urban travel quality, viewing them as aids for both private and public transport while respecting rules.
Replies on X urged involving Italy’s Transport Ministry to speed approvals, with one user noting, “Great idea to involve the mayor! It would be necessary to involve components of the Ministry of Transport and the government as soon as possible: it’s they who can accelerate the approval of FSD in Italy.”
News
Tesla FSD (Supervised) blows away French journalist after test ride
Cadot described FSD as “mind-blowing,” both for the safety of the vehicle’s driving and the “humanity” of its driving behaviors.
Tesla’s Full Self-Driving (Supervised) seems to be making waves in Europe, with French tech journalist Julien Cadot recently sharing a positive first-hand experience from a supervised test drive in France.
Cadot, who tested the system for Numerama after eight years of anticipation since early Autopilot trials, described FSD as “mind-blowing,” both for the safety of the vehicle’s driving and the “humanity” of its driving behaviors.
Julien Cadot’s FSD test in France
Cadot announced his upcoming test on X, writing in French: “I’m going to test Tesla’s FSD for Numerama in France. 8 years I’ve been waiting to relive the sensations of our very first contact with the unbridled Autopilot of the 2016s.” He followed up shortly after with an initial reaction, writing: “I don’t want to spoil too much because as media we were allowed to film everything and I have a huge video coming… But: it’s mind-blowing! Both for safety and for the ‘humanity’ of the choices.”
His later posts detailed FSD’s specific maneuvers that he found particularly compelling. These include the vehicle safely overtaking a delivery truck by inches, something Cadot said he personally would avoid to protect his rims, but FSD handled flawlessly. He also praised FSD’s cyclist overtakes, as the system always maintained the required 1.5-meter distance by encroaching on the opposite lane when clear. Ultimately, Cadot noted FSD’s decision-making prioritized safety and advancement, which is pretty remarkable.
FSD’s ‘human’ edge over Autopilot
When asked if FSD felt light-years ahead of standard Autopilot, Cadot replied: “It’s incomparable, it’s not the same language.” He elaborated on scenarios like bypassing a parked delivery truck across a solid white line, where FSD assessed safety and proceeded just as a human driver might, rather than halting indefinitely. This “humanity” impressed Cadot the most, as it allowed FSD to fluidly navigate real-world chaos like urban Paris traffic.
Tesla is currently hard at work pushing for the rollout of FSD to several European countries. Recent reports have revealed that Tesla has received approval to operate 19 FSD test vehicles on Spain’s roads, though this number could increase as the program develops. As per the Dirección General de Tráfico (DGT), Tesla would be able to operate its FSD fleet on any national route across Spain. Recent job openings also hint at Tesla starting FSD tests in Austria. Apart from this, the company is also holding FSD demonstrations in Germany, France, and Italy.
Tesla Full Self-Driving shows confident navigation in heavy snow
Tesla hosts Rome Mayor for first Italian FSD Supervised road demo
