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SpaceX Falcon 9 booster spied on highway as triple-satellite launch moves right
A SpaceX Falcon 9 booster was spotted heading north from the company’s Hawthorne, California factory on January 22nd, signifying a likely shipment of the flight-proven rocket that will help launch Canada’s trio of Radarsat Constellation Mission satellites.
Delayed from mid-February to early March 2019 after an unplanned landing anomaly damaged the Falcon 9 originally assigned to the mission, the shipment of a different booster to Vandenberg Air Force Base (VAFB) helps to narrow down the rocket now likeliest to launch the Canadian Space Agency’s (CSA) radar satellite constellation.
https://twitter.com/GoForStaging/status/1088174203298230272
Do the Booster Shuffle!
Thanks to a hydraulic pump failure that led Falcon 9 B1050 to land (albeit softly and in one piece) in the Atlantic Ocean last December, the imminent launch of two booster-dense Falcon Heavy missions, and the thus far schedule-shy orbital launch debut of Crew Dragon, SpaceX’s fleet of available boosters – all flight-proven – can be succinctly summarized as “B1046 thru B1049”.
B1050’s future is uncertain after suffering a smashed interstage and soaking in salt water for several days, while B1051 is definitively assigned to Crew Dragon’s orbital launch debut, known as Demo-1 (DM-1). Falcon 9 B1052 and B1053 are unknown quantities and B1054 was expended after a high-value US Air Force launch, also SpaceX’s final mission of 2018. It’s probably safe to bet that B1052, B1053, and B1055 will be the next three boosters to support a Falcon Heavy launch (or two), currently NET March and April 2019. All three of those Falcon Heavy (FH) boosters have completed static fire tests in Texas and both side boosters arrived at SpaceX’s Florida facilities within the last ~6 weeks.
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- A Falcon Heavy side booster was spotted eastbound in Arizona on November 10th. (Reddit – beast-sam)
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- The second (and third) flight of Falcon Heavy is even closer to reality as the first new side booster heads to Florida after finishing static fire tests in Texas. (Reddit /u/e32revelry)
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- Reddit user wedatsaints captured this photo of the second Falcon Heavy side booster traveling through Mississippi on Jan 16. (Reddit /u/wedatsaints)
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- SpaceX Facebook group member Joshua Murrah captured the second Falcon Heavy side booster to arrive in Florida in the last month. (Joshua Murrah, 01/17/19)
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- A booster – likely the next Falcon Heavy center core – was vertical at McGregor’s S1 static fire stand. (Instagram /u/tcryguy)
Assuming that Falcon Heavy Flight 2 and 3 use the same exact boosters, SpaceX production technicians and engineers may already be nearing the completion of another Falcon 9 booster (B1056, presumably) at the Hawthorne factory, although they are likely 1-2 weeks away from that milestone. If, Falcon Heavy Flight 3 (presumed to be the USAF’s STP-2 mission) does not reuse all three first stage boosters from Flight 2 (commercial payload Arabsat 6A), then Hawthorne will have to build, ship, and test anywhere from 1-3 additional boosters between now and April 2019. In the latter scenario, all unflown – mid-build or completed – Falcon boosters would be ‘claimed’ between now and March or April.
Put in another way, short of opting for a delay that could stretch 1-4 months or longer, the Canadian Space Agency (CSA) and Radarsat prime contractor MDA will have to accept one of SpaceX’s flight-proven Falcon 9s.
Falcons on wheels
Thanks to SpaceX’s trusty and well-worn method of using good old trucks and roads to transport Falcon 9 and Heavy boosters, upper stages, fairings, landing legs, and much more cross-country, spaceflight fans have long taken advantage of opportunities – rare and fleeting as they might be – to spot and track SpaceX hardware on public roads. Put simply, a lot of people are excited about SpaceX or are at least familiar and curious enough to know someone to share a photo or observation with. As a result, the community averages dozens of ‘core spottings’ per year. With a little intuition, the process of elimination, a few sources, and some wild guesses, this allows unofficial fans to (very roughly) paint a picture of SpaceX’s fleet of rockets.
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- Reddit user intamin1 spotted a Falcon 9 booster northbound between Hawthorne and Vandenberg on Jan 22. (Reddit /u/intamin1)
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- A booster – likely the next Falcon Heavy center core – was vertical at McGregor’s S1 static fire stand. (Instagram /u/tcryguy)
For example, the Falcon 9 spotted in Valencia, CA on January 22nd by Reddit user intamin1 could theoretically be any SpaceX booster currently in existence. By knowing the rough state of SpaceX’s fleet (as described above) and observing that the booster was northbound between Hawthorne, CA (the factory) and Vandenberg Air Force Base (VAFB) on Jan 22, a great deal can be intuited. Bound for SpaceX’s West Coast launch complex (SLC-4), it ought to be flightworthy. Knowing that a Falcon Heavy center booster was on SpaceX’s McGregor, Texas static fire stand on January 10th means that the spotted booster can’t (or at least shouldn’t) be coming from Texas, as Falcon Heavy has no known launches planned from VAFB. The process of testing, inspecting, and preparing Falcon boosters for cross-country shipment is also not easily rushed.
On the East Coast, SpaceX needs to launch communications satellite PSN-6 and Spaceflight rideshare GTO-1 in mid to late February. With no new boosters expected to be easily available for months and PSN-6/GTO-1 already entering into the phases of payload fueling, integration, and fairing encapsulation, it can be all but guaranteed that a flight-proven booster was assigned to the mission months ago and is now nearly ready for its third flight somewhere in Cape Canaveral, FL.
Given that B1046 and B1049 are on the West Coast after conducting launches from VAFB and that B1050 is out of circulation for the time being, only B1047 and B1048 remain (in theory) on the East Coast, both having flown two missions. B1048 was recently spotted and confirmed in photos of SpaceX’s Pad 39A integration hangar, although Falcon 9 B1051 and the first orbit-ready Crew Dragon were the center of attention.
B1047 completed its second launch in mid-November 2018 and returned to one of SpaceX’s Florida hangars for refurbishment around Nov 21. Unless any number of locals and bystanders somehow missed it, neither booster has left the Cape since arriving. Meanwhile, B1048 is currently the best-known candidate at hand for SpaceX’s Crew Dragon In-Flight Abort (IFA) test, expected to occur no earlier than spring 2019 and entirely dependent upon the successful launch, reentry, recovery, and refurbishment of the DM-1 capsule to proceed. As a result, the only booster that is realistically available for PSN-6/GTO-1 is Falcon 9 B1047 for what would be its third launch.
Few of my favorites from today's Pence visit to #SpaceX pad 39A. In first photo, from left to right: Previously flown B1048, booster for DM-1, Crew Dragon for DM-1. Look at the size of that Merlin engine bell.
More photos: https://t.co/6dMbampx2c pic.twitter.com/3KmjVj4Rvf
— Emre Kelly (@EmreKelly) December 18, 2018
Assuming B1048 did not manage to make it from Cape Canaveral to Central California without a single spotting, the only rockets available for the RCM mission are B1046 and B1049. B1049 completed its second launch – Iridium-8 – just weeks ago and returned by drone ship to Port of LA on January 13th, whereas Falcon 9 B1046 – after completing its historic third launch – completed recovery and was snug in a Hawthorne, CA refurbishment bay by December 17th, 2018. Going off of Occam’s Razor, B1046 is the clear victor for the launch of RCM, although a ~60-90-day turnaround for the already thrice-flown booster could be a stretch. B1049, however, would have barely a single month for refurbishment and inspections.
In the last week or two, RCM stakeholders were provided an updated launch target, delaying the mission by approximately two weeks to a window that begins February 28th with the implication being that the launch is now expected NET early March. If that date is recent and from SpaceX, B1046 is the most practical option, with B1049 thus filling its refurbishment bay in Hawthorne, CA around the same day. If a risk of a 30-day or greater delay is tolerable for CSA and MDA, then B1049.3 would likely be a more optimal fit for their risk tolerance profile. Time will tell!
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
