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Elon Musk reveals SpaceX Falcon 9 survived a water landing test
Following the picture-perfect launch of GovSat-1 on Wednesday afternoon, SpaceX CEO Elon Musk took to Twitter with an extremely unusual bit of news. After separating from the second stage, events relating to Falcon 9’s first stage recovery operations were heard live in the background of SpaceX’s live coverage, leading to some additional intrigue around an already odd situation.
B1032, a flight-proven (reused) booster tasked with launching GovSat-1 on its second mission, was seen with landing legs and grid fins on its sooty exterior – a confusing appearance due to SpaceX’s statement that the core would be expended into the ocean after launch. Thankfully, Elon Musk’s tweets provide at least the beginning of an answer for the several oddities.
This rocket was meant to test very high retrothrust landing in water so it didn’t hurt the droneship, but amazingly it has survived. We will try to tow it back to shore. pic.twitter.com/hipmgdnq16
— Elon Musk (@elonmusk) January 31, 2018
As stated above, GovSat-1’s Falcon 9 booster (1032) was apparently being used to test an exceptionally aggressive landing burn in lieu of a drone ship beneath it. The lack of drone ship begins to make more sense with the added knowledge that 1032 was testing experimental landing procedures: in the relatively likely eventuality that something went wrong, the massive booster would have likely impacted Of Course I Still Love You at an extremely high velocity. Similar impacts have occurred before as SpaceX gradually perfected the new technologies and operational knowledge necessary to recover orbital-class rockets, but a basic understanding of rocketry implies that 1032’s OCISLY impact would have been uniquely destructive, likely taking the ship out of action for at least several weeks of repairs.
This would pose an inherent problem for the imminent launch of Falcon Heavy, with the center of three first stages currently scheduled to attempt a landing aboard the very same drone ship in less than a week. Under optimum conditions (sans huge explosions and general destruction), OCISLY and its entourage of support vessels simply could not complete the journey back to Port Canaveral and the subsequent return to sea that would have been necessary to recovery both GovSat-1 and Falcon Heavy’s center core. Add in the potential need for repairs and expending GovSat-1 was a no-brainer for the launch company: Falcon Heavy’s center core could easily see at least one additional launch after it is recovered, whereas the twice-used 1032 effectively reached the end of its useful life after it separated from the second stage and GovSat payload earlier today.
Falcon 9 1038 aboard Just Read The Instructions after the launch of Formosat-5. (SpaceX)
As a result, SpaceX appears to have continued a trend of exploiting flight test opportunities to the greatest extent practicable by tasking B1032 with an experimental landing attempt. More specifically, Elon quickly added that the landing burn attempted by 1032 involved the ignition of three of the booster’s nine Merlin 1D engines during landing, whereas all SpaceX landings up to this point have occurred with a single Merlin 1D ignition. While the company already routinely utilizes three engines during some boostback and reentry burns, landing burns have always featured a single engine. However, by using three engines, it is entirely possible that SpaceX hopes to eventually move towards even more aggressive landing burns. While the obvious downsides likely include difficulty maintaining control and increased stresses on the booster, the benefits are also pretty inherent. By using more engines, the length of the landing burn could be drastically shortened, resulting in far more efficient propellant usage by minimizing losses to gravity (every second the rocket is trying to go upwards is a second fighting against Earth’s gravity, which pulls the rocket down at ~9.8 meters/second squared).
Incredibly, the booster somehow managed to pull off that three engine landing burn with some success, made apparent by the fact that it is intact and floating in the Atlantic, with some hope of being towed back to land. This is almost certainly the first time SpaceX has ever successfully landed a booster in the ocean without a subsequent breakup, an incredible achievement for a rocket that likely experienced exceptional stresses during reentry and landing. Time will tell how this impacts SpaceX’s future recovery efforts, but it is certainly promising as a method of extracting just a little extra performance from reusable Falcon 9s. In other words, future Falcon 9 missions might be able to carry heavier payloads into higher orbits while still being able to land at sea or even on land. Exciting times!
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
