News
SpaceX’s Mr. Steven crosses Panama Canal on 5000 mile journey to Florida
Iconic SpaceX vessel Mr. Steven has completed a successful transit of the Panama Canal as of February 7th, leaving the fairing recovery ship approximately 3-4 days from arrival at its new home in Port Canaveral, Florida.
Mr. Steven’s move from the West Coast to the East Coast comes shortly after a series of controlled fairing recovery tests – dropped by helicopter before deploying a parafoil – brought the vessel closer than ever before to successfully snagging a Falcon fairing out of the air. Thanks to webcams at the landmark, Mr. Steven’s trip through the Panama Canal also revealed that his arms were uninstalled for the coast swap, while two fairing halves – covered in tarps – stood out on the ship’s large deck.
Aaaaand the grand finale, a gif of Mr. Steven’s transit through the Panama Canal’s first western lock (Miraflores). Probably the last we’ll see of him until Port Canaveral, with an ETA around ~4 days from now 🙂#SpaceX pic.twitter.com/DIus6K5hK5
— Eric Ralph (@13ericralph31) February 7, 2019
Although the presence of two fairing halves could be a sign of something else, it could indicate that SpaceX has plans to continue its controlled fairing drop/recovery tests, albeit this time in the Atlantic Ocean. Thanks to a sharp-eyed local observer, it can be observed that, while topped with tarps and safely secured, the fairing halves aboard Mr. Steven had no additional protection against sea spray and the elements over the course of a 5000+ mile (~8000 km) journey at a cruising speed of roughly 20 mph (~32 km/h). In other words, they are most certainly not going to be reused.
If not for reuse, then the only reason Mr. Steven would need to bring fairings to Florida is if there is some need for fairing recovery development hardware (halves that can be abused without opportunity cost), either for more basic mechanical and interface tests with fairings and nets or to continue SpaceX’s program of experimental drop testing.
Is your #MrSteven here in Panama @elonmusk and @SpaceX ? pic.twitter.com/GvTNGYQU9K
— Hugo Tello (@soyhugotello) February 6, 2019
Intriguingly, although SpaceX released a second video of “one” of Mr. Steven’s final West Coast catch tests, some basic sleuthing can easily determine that the test shown in the January 29th video probably occurred more than two weeks earlier, on January 10th. This means that one final helicopter drop test was performed (January 26th) before SpaceX departed Port of LA for Florida on the 29th. Some might conclude, then, that SpaceX’s latest drop tweet was more than a little coy, perhaps indicating that the results of the Jan 26 test may have been appreciably different than the extreme near-miss experienced on the 10th.
While the company’s history – combined with CEO Elon Musk’s welcome tendency of sharing good news almost as soon as he hears it – suggests that the Jan 26 test was probably not a success, SpaceX could be playing its development cards close to its chest when it comes to fairing recovery.
One of Mr. Steven’s final West Coast fairing recovery tests before shipping out for the East Coast. Wait for it… pic.twitter.com/A7q37Gpllu
— SpaceX (@SpaceX) January 30, 2019
Regardless, SpaceX clearly has no plans to end its experimental fairing recovery program with success so agonizingly within reach. Mr. Steven’s move to Florida sets the vessel up for a dramatic increase in available post-launch fairing recovery attempts at the same time as Falcon fairings likely still cost around $3 million apiece and continue to pose the same conundrum Musk raised in mid-2017.
“Imagine if we had a $6 million pallet of cash falling through the sky. Would we try to catch it? I think the answer is yes.” – Elon Musk, July 2017
Although the cost of SpaceX’s fairing recovery program is probably several tens of millions of dollars at this point, it seems probable that Musk would still stand behind his thought experiment. Assuming SpaceX can cost-effectively reuse fairings once recovery is assured, a development program costing upwards of $50-100M could be entirely recouped after just 10-20 dual fairing recoveries, compared to the 21 fairings SpaceX flew in 2018 alone. As long as Falcon 9 and Heavy are likely to continue operating for several more years (all but guaranteed), fairing recovery should still prove worthwhile if SpaceX can close the recovery gap within the next 6-12 months.
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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
