The European Organization for Nuclear Research, more commonly known as CERN, recently published an ambitious proposal to build what could only be described as a mammoth accelerator that’s nearly four times as long and up to six times more powerful as its 27-km Large Hadron Collider (LHC), which studies the tiniest particles that make up all matter, dark matter, and infamously, black holes. The project is yet to be greenlit, but if a recent tweet from SpaceX and Tesla CEO Elon Musk is any indication, The Boring Company could play a part in the construction of the ambitious project.
In a tweet on Monday, Musk noted that the director of CERN had been quite interested in the tunneling technologies of The Boring Company, which could play a part in saving costs for the construction of the agency’s next-generation particle collider. Musk noted that by using The Boring Company’s tunnels, the project would likely save “several billion Euros.”
Director of CERN asked me about Boring Co building the new LHC tunnel when we were at the @royalsociety. Would probably save several billon Euros.
— Elon Musk (@elonmusk) January 21, 2019
The particle physics laboratory, which operates in a site near Geneva, Switzerland, outlined its plans for the 100-km LHC successor, dubbed as the “Future Circular Collider” (FCC), last Tuesday. The FCC is expected to replace the LHC, whose most notable success so far has been the discovery of the Higgs boson, a previously-theoretical particle that gives mass to all matter. Since the discovery of the Higgs boson in 2012, though, CERN’s Large Hadron Collider has not been able to discover any new particles of the same significance. This, according to Gian Francesco Giudice, CERN’s theory department head, highlights a need to push collider technologies forward.
“Today, exploring the highest possible energies with bold projects is our best hope to crack some of the mysteries of nature at the most fundamental level,” he said, according to Nature.
The possibilities that could be unlocked by a project as ambitious as the Future Circular Collider could easily come from a sci-fi tale. It would not be an exaggeration to state that the FCC would enable physicists to open the door to as-yet-unknown physics, while helping answer a number of notable questions about the universe. First off, the FCC would help CERN scientists study the Higgs boson more extensively — something that is not possible with the LHD. The project is also expected to allow scientists to explore topics such as dark matter and antimatter.
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- The size of the FCC compared to the LHD. (Photo: CERN)
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- An artist’s image depicting particles colliding. (Photo: CERN)
CERN’s Future Circular Collider is expected to be four times as large and up to six times more powerful than its predecessor. (Photos: CERN)
While the possibilities presented by CERN’s proposed 100-km particle collider are vast, the Future Circular Collider does have its fair share of drawbacks — the most notable of which is the cost of the entire project. CERN’s report on the FCC estimates that the project’s tunnels alone would cost €5 billion ($5.7 billion) to build. Another €4 billion ($4.6 billion) is expected to be required for the first collider (which will collide leptons), while €4 billion ($4.6 billion) would likely be needed for the final collider (which is designed to collide protons). Provided that the ambitious project does not meet any substantial difficulties in its construction, the FCC could be operational by 2040.
This is where The Boring Company’s technologies could come in. The tunneling startup, after all, aims to reduce the costs of tunneling through optimizations in the digging process. So far, The Boring Company is only involved in projects involving transportation, such as the construction of the high-profile downtown Chicago-O’Hare high-speed transport line. The cost savings presented by The Boring Company’s tunnels were particularly evident when Elon Musk revealed the cost of the startup’s mile-long test tunnel in Hawthorne, CA last December. During his presentation, Musk noted that the Hawthorne tunnel cost $10 million to construct. This is far more affordable than traditional tunneling costs, which cost most U.S. local and state governments an average of $200-$500 million dollars per mile.
Granted, the requirements for CERN’s 100-km tunnel would be far more than demanding than the otherwise straightforward tunnels that The Boring Company will construct in the immediate future. That said, the rather generous timeframe for the Future Circular Collider would also give The Boring Company some time to further refine and optimize its tunneling technologies. For now, though, the prospect of CERN’s next-generation LHD’s tunnels being dug by The Boring Company would remain an idea that would only get more plausible over time.
SpaceX’s Raptor engine family has steadily increased sea-level thrust while simultaneously reducing mass, turning iterative engineering gains into substantially higher performance for the Super Heavy booster. CEO Elon Musk shed more light on how powerful Raptor 4 will be, and it’s pretty crazy.
Raptor 1 delivered 185 metric tons of thrust at roughly 2,080 kilograms, while Raptor 2 raised that to 230 tons while cutting mass to about 1,630 kilograms. SpaceX data for Raptor 3 lists a target of 280 tons at 1,525 kilograms (with further reductions in associated vehicle hardware), while operational flight ratings have been cited near 250 tons.
This morning, Elon Musk stated that Raptor 4 is expected to reach 300 tons of sea-level thrust at roughly the same mass as Raptor 3. Across these versions, thrust has risen by more than 60 percent from the first engines while engine mass has fallen, producing a sharp improvement in thrust-to-weight ratio. This is a true testament to how great SpaceX engineering has been:
🚀 Elon says Raptor 4 will make 300 tons of thrust at sea level at roughly the same mass as Raptor 3.
How far Raptor has come:
Raptor 1: 185 tf, 2,080 kg
Raptor 2: 230 tf, 1,630 kg
Raptor 3: 250 tf, 1,525 kg
Raptor 4: 300 tf33 on Super Heavy = ~9,900 tf, nearly 3x Saturn V https://t.co/HQDswZhyvL
— TESLARATI (@Teslarati) October 26, 2026
With 33 engines on SuperHeavy, the jump from earlier versions to a 300-ton Raptor 4 would produce roughly 9,900 metric tons of total liftoff thrust, nearly three times the Saturn V’s approximately 3,400 metric tons from its five F-1 engines.
This is not just a larger number on a data sheet, either, as sea-level thrust is the force available the moment the vehicle leaves the pad. This is when it is heaviest and still deep in Earth’s gravity well and dense atmosphere.
Higher levels of sea-level thrust directly improves the initial thrust-to-weight ratio of the full stack. A higher ratio produces faster acceleration off the pad, which shortens the time the rocket has to spend fighting gravity, and gravity losses during the first minute or two of the flight are a major drain on total available delta-v. Every second shaved off of that early climb preserves more propellant energy for reaching orbital velocity or for carrying extra payload.
Because Super Heavy’s engine count is constrained by vehicle diameter and packing density, increasing thrust per engine is the most straightforward way to raise total liftoff performance without redesigning the booster structure or design.
The same-mass target for Raptor 4 is equally important. Holding engine mass roughly constant while raising thrust improves the engine’s own thrust-to-weight ratio and reduces the structural and propellant mass fraction that must be carried solely to support the engines.
Earlier Raptor iterations also simplified or eliminated extensive vehicle-side hardware such as heat shields. These gains compound: more force for less installed mass leaves additional capacity for propellant, payload, or operational margins such as engine-out capability.
For Starship’s architecture, the practical effects are large. Greater liftoff thrust supports heavier vehicles, larger propellant loads, and higher payloads to low Earth orbit, figures SpaceX has targeted in the 100-plus-ton reusable range. That capacity underpins orbital refueling, lunar missions, and eventual Mars cargo and crew flights.
Continued growth in sea-level thrust therefore tightens the gap between theoretical rocket performance and the high flight rates and reusability needed to make large-scale space transport practical.
Tesla has expanded its Tesla Assisted Driving (TAD) suite to its tenth European country, as Latvia joined a growing list of European Union member states authorizing the company’s advanced driver assistance technology.
Tesla Europe announced this morning that the system is now approved in Latvia, with a software rollout to begin soon.
The approval and rollout follow recognition of a provisional European type approval originally granted by the Netherlands’ RDW authority on April 10.
🚨 Latvia has just received approval for Tesla Full Self-Driving (Supervised)
This is the 10th country in the EU to gain approval:
1. Netherlands — 10 April 2026 (original RDW approval)
2. Lithuania — 20 May 2026
3. Estonia — 29 May 2026
4. Denmark — 9 June 2026
5. Belgium — 10 June 2026
6. Slovenia — 7 September 2026
7. Czechia — 21 September 2026
8. Croatia — 29 September 2026
9. Slovakia — 16 October 2026— TESLARATI (@Teslarati) October 26, 2026
Latvia’s Road Traffic Safety Directorate (CSDD) evaluated the Dutch documentation, coordinated with the other national authorities, and reviewed updates from Tesla. These included tightened limits on speed offsets, automatic resets of any manual speed adjustments after each trip, and stronger driver monitoring.
In Europe, the feature is marketed as Tesla Assisted Driving after a recent rule change that labeled the name “Full Self-Driving” as misleading.
The system remains an SAE Level 2 driver assistance tool, not unsupervised autonomy. It can control speed, steering, braking, lane changes, and intersections while following a navigation route. Drivers need not keep their hands on the wheel at all times, yet they must continuously monitor the road and be prepared to intervene immediately.
The sequence of EU recognitions began with the Netherlands in April and continued through Lithuania, Estonia, Denmark, Belgium, Slovenia, Czechia, Croatia, and Slovakia. Most have relied on mutual recognition of the single Dutch provisional approval rather than independent national testing.
These national clearances do not yet constitute bloc-wide authorization. An EU-wide decision requires a qualified majority in the Technical Committee on Motor Vehicles: at least 15 of 27 member states representing 65 percent of the EU population. Larger markets, like Germany, France, and Italy, remain under review, and a vote is expected this December.
However, for Latvian Tesla owners with compatible vehicles and software, the imminent rollout expands access to the supervised system while underscoring that attentive human oversight remains essential.
Tesla expanded its Robotaxi geofence in Houston, Texas, today, enlarging the service area and drawing a new rocket-shaped boundary across the city’s northwestern and central parts.
Although CEO Elon Musk said it was just a coincidence, the expansion seems to be an ode to SpaceX and its potential merger with Tesla.
🚨 Tesla has just expanded its Robotaxi geofence in Houston
It looks a lot like a rocket — we all remember the shape in Austin 🤣 https://t.co/cFOPEuiJ4u
— TESLARATI (@Teslarati) October 26, 2026
The official Tesla Robotaxi account announced the change with the lines “Houston, we have liftoff” and “Bigger service area now live,” pairing them with a map overlay.
The prior white geofence, roughly 25 square miles covering Jersey Village, Harvest Bend, and the Willowbrook corridor along U.S. 290 and State Highway 249, now sits inside a larger blue zone that stretches southeast toward Bellair and closer to central Houston.
Houston’s Robotaxi service launched on April 18, 2026, the same day as Dallas, as Tesla’s first unsupervised public expansion beyond Austin. From the start, the vehicles were Model Ys running without anyone in the front seats, booked through the dedicated Tesla Robotaxi app and open to the public inside the geofence.
Trackers measured the initial zone at about 25 square miles; by late September it had not grown substantially. Community and registry data indicated a modest local fleet of unsupervised Model Ys, while dozens to nearly 200 Cybercabs, the purpose-built, steering-wheel-free two-seaters, have been spotted staging and testing in Houston lots, though public Cybercab rides remain limited to Austin for now.
Across the broader Robotaxi program, Tesla began public Robotaxi rides in Austin in June 2025, as a small geofence and vehicles with safety monitors became available for a ride-hailing service. Later on, Tesla removed the monitors and steadily expanded the service area until it covered most of the Austin metro area.
Unsupervised Robotaxi services now run in six cities: Austin, Dallas, Houston, Miami, Orlando, and Tampa. Cumulative driverless miles reported by the company have reached several million. The Cybercab entered public service in Austin in early September 2026 and has scaled rapidly there. The company has also said that Dallas is next for Cybercab rides in November, with further cities and 24/7 hours targeted by year-end, plus fleet-operator sales of the vehicle.
Waymo also operates a fully driverless service in Houston, which has been open to the public since August of this year.
The Houston expansion continues Tesla’s pattern of starting with tightly controlled validation zones before widening coverage as real-world data accumulates, while the rocket motif on the map underscores the company’s habit of injecting visual flair into its autonomy rollout.
Riders inside the new boundary can request unsupervised Model Y trips in the Robotaxi app; exact operating hours and further Cybercab availability remain subject to app updates and company statements.
How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady
Tesla Assisted Driving expands to tenth EU country
