News
SpaceX Starlink launch suffers third weather scrub, next attempt Tuesday
Update: Multiple weather constraint violations forced SpaceX to scrub today’s Starlink-12 launch attempt less than half an hour before liftoff, marking the mission’s third weather-related scrub and fourth abort overall since mid-September. As of October 4th, the US Air Force 45th Space Wing predicted a 40% chance of weather violation.
SpaceX’s fifth Starlink-12 launch attempt is scheduled no earlier than 7:29 am EDT (11:29 UTC) on Tuesday, October 6th. The mission-specific T-1 weather forecast predicts a 70% chance of favorable conditions.
On the heels of a rare last-second Falcon 9 launch abort, SpaceX is closing in on its third attempt to launch the 12th batch of operational Starlink satellites.
Scheduled to lift off from Kennedy Space Center (KSC) Launch Complex 39A (Pad 39A) no earlier than (NET) 7:51 am EDT (11:51 UTC) on Monday, October 5th, Starlink-12 was originally scheduled to launch in mid-September. Bad weather at the Atlantic Ocean landing zone caused a ten-day delay from September 17th to the 27th, followed by a pad weather delay on the 28th.
After a ULA Delta IV Heavy mission with range priority was scrubbed for the seventh time on September 30th, SpaceX tried to launch Starlink-12 again but suffered an abort – later blamed on a pad sensor – seven seconds before liftoff. Finally, a new Falcon 9 launch with an upgraded GPS III satellite aboard was aborted just two seconds before liftoff on October 2nd. Moved from NET October 3rd to the 5th just prior to GPS III SV04’s separate launch delay, Starlink-12 is now up next.
Interrupting what has otherwise been a much-improved level of launch readiness and schedule reliability for Falcon 9 and Falcon Heavy’s Block 5 upgrade, this recent string of delays – while mostly the result of weather and ULA’s own NROL-44 launch delays – has even become a concern for CEO Elon Musk. Currently focused on building out SpaceX’s new Starship factory and pushing towards the rocket’s first high-altitude and orbital test flights in Boca Chica, Texas, Musk stated that he would be flying to Cape Canaveral “to review hardware in person” on the week of October 5th.
Musk also says that SpaceX is “doing a broad review of launch site, propulsion, structures, avionics, range, & regulatory constraints” to determine if an apparent goal of “48 launches” in 2021 is feasible.
To be fair to SpaceX, most of the plague of delays suffered by the company in the last month has been caused by a mixture of weather and the range’s preferential treatment of ULA’s “national security” NROL-44 launch. Additionally, of an impressive seven ULA NROL-44 launch attempts between August 26th and September 30th, just a single one was caused by weather – the remaining six a result of a wide variety of technical software and hardware bugs. SpaceX’s Starlink-12 and GPS III SV04 missions have only suffered one technical launch abort each on September 30th and October 2nd.
In other words, short of upgrading Falcon rockets to launch and land in worse weather conditions, most of SpaceX’s delays have been largely out of the company’s control, while ULA’s NROL-44 struggles demonstrate just how much worse things could be. According to an unofficial analysis of 44 Falcon Block 5 launches since May 2018, only four technical launch aborts have been triggered by a booster fault. Pad-caused aborts have been roughly as common, meaning that 1 in roughly 6 to 8 SpaceX launches suffers some kind of abort shortly before liftoff, on average.
Altogether, Falcon Block 5 rockets have been relatively dependable for on-time, on-schedule launches even if SpaceX has struggled with more repeated delays than usual in the last few months. To achieve anywhere close to 48 launches annually, however, major improvements will need to be made, likely including upgrades to whatever is responsible for Falcon 9’s weather constraints. As of October 2020, SpaceX has never launched four times in one month (or four times in the same ~30-day period). To launch 48 times in one year, SpaceX will need to average four launches per month. That, of course, in no way accounts for the possibility that 2020-esque summer weather could functionally cut 4-8+ weeks off of Falcon 9’s annual availability.
Regardless, SpaceX will begin live coverage of the third Starlink-12 launch attempt around 7:35 am EDT (11:35 UTC). Tune in to (hopefully) catch the company’s 17th launch this year.
Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.
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
