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SpaceX talks Moon mission as strategic stepping stone for Mars colony
Josh Brost, Senior Director of SpaceX’s Government Business Development was in attendance at a civil spaceflight conference in Washington D.C. yesterday, January 18, and provided a number of interesting details about SpaceX’s upcoming activities in 2018. Perhaps most intriguingly, he reiterated SpaceX’s interest in enabling exploration of the Moon and Mars, while also clarifying that the upcoming Falcon 9 upgrade will be the last major change to the vehicle for the indefinite future.
Although the audience may have been more focused on SpaceX’s potential lunar prospects, Brost provided a vision similar to CEO Elon Musk’s common-knowledge goal of Martian (and interplanetary) colonization. This lunar focus was in part evidenced by a pointed question from an audience member that triggered Brost’s subsequent suggestion that the Moon could be a more logical starting place for the company as it ramps up its deep space efforts and gradually slips beyond Earth orbit. This strategic and calculated extension of the aspirations of the launch company’s famous founder is a rational attempt to position SpaceX in ways that allow the company to derive as much value as possible from the US government’s recently revived interest in returning the US and its astronauts to the Moon.
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- SpaceX’s 2017 BFS (now Starship) delivers cargo to a large lunar base. (SpaceX)
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- Starship and a Martian city, circa 2017. (SpaceX)
To a large extent, his comments mesh with the vision Elon Musk reiterated at 2017’s September IAC.
SpaceX’s next-generation heavy-lift rocket and spaceship (BFR and BFS) are being designed to carry 150 metric tons into low Earth orbit while still recovering both the first and second stages, and will be purpose-built for rapid and complete reusability. BFR and BFS are also being intentionally designed to be relatively destination-agnostic. In other words, BFS will be capable of transporting cargo and eventually crew to a number of destinations in the solar system, be it the Moon, Mars, or beyond. The outer planets are almost certainly off limits for crew due to the sheer length of any journey beyond the orbit of Mars, but BFR, as it was discussed last year, would be capable of transporting unprecedented amounts of cargo almost anywhere in the solar system. Reusability is, of course, paramount to SpaceX’s operational intent with BFR/BFS; unless a very lucrative offer is made, it is highly unlikely that SpaceX will even consider expendable missions, thus partially limiting what the next-gen vehicle will be capable of.
Still, it will be an incredibly capable rocket even with full reusability. Add in the potential promise of mature in-situ resource utilization (ISRU), more simply the production of methane and oxygen propellant at the destination, and it will open a hundred entirely new worlds to serious scientific, exploratory, and economic prospecting throughout the solar system.
SpaceX’s massive BFR visualized taking to the sky. (SpaceX).
What’s next?
The question, then, is “when?” While Brost did not specifically provide any sort of timeline for BFR, aside from a brief statement on its readiness in “a few years,” he did describe in some detail the imminent end of serious Falcon 9 upgrades. A continual stream of upgrades and modifications has been one of the only real constants with SpaceX’s Falcon 9 rocket: the original Falcon 9 is in almost every respect a completely different rocket when compared to the Falcon 9 Full Thrust (FT/1.2) of the present. However, one final leap is expected for Falcon 9, this time almost exclusively intended to improve the vehicle’s reliability and reusability as SpaceX rapidly approaches its first flights of Crew Dragon and dreams of rapid and repeated booster reuse.
While it was a small detail in an obscure sentence of one of several hour-long discussions, Brost specifically stated this:
Brost: with Block 5, goal it to lock down the design and fly the vehicle at very high flight rates. Innovation will focus on designing and testing BFR.
— Jeff Foust (@jeff_foust) January 18, 2018
This is arguably the most exciting tidbit provided to us by SpaceX. While it was undeniably vague and rather less than crystal-clear, it can be interpreted as something like this: once Block 5 has been introduced and begun to fly and refly both regularly and successfully, the vast majority of SpaceX’s launch vehicle development expertise will begin to focus intensely on the development and testing of BFR and BFS.
Statements from just last week made by SpaceX President Gwynne Shotwell strengthen this intuitive leap considerably, because BFR and BFS are liable to require a considerable amount of attention as they proceed through design maturation and eventually begin physical hardware testing in Texas.
Shotwell’s comments implied that SpaceX’s Boca Chica launch facilities, currently under construction, would be ready to support “vehicle tests” as early as late 2018/early 2019. Comments from earlier in 2017 indicate that SpaceX (and Shotwell) perceive Boca Chica as a near-perfect location for BFR launches (and thus BFR testing, as well). Finally, Brost’s implication that SpaceX’s exceptional team of brilliant and innovative launch vehicle engineers would be refocused on BFR soon after Block 5 was stable also meshes with this rough timeline. If Falcon 9 Block 5 does indeed debut within the “next few months” as Brost stated, it will have likely reached some level of design and operational maturity by the end of 2018, assuming SpaceX’s expected launch cadence.
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- SpaceX’s Falcon 9 ahead of the launch of Zuma. (Tom Cross/Teslarati)
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- A Falcon 9 lifts off from LC-40 carrying the highly secretive Zuma spacecraft. Hispasat 30W will launch from the same pad in just a few days. (Tom Cross)
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- Falcon 9 1035 conducts its second landing after successfully launching CRS-13 on December 15. Improved reusability will be a huge focus of SpaceX in 2018. (NASA)
As of right now, SpaceX is already looking at a very busy February, and currently has as many as three commercial launches scheduled within a period of maybe three weeks (GovSat-1, PAZ, and Hispasat), maybe even four if Falcon Heavy completes its first static fire later this weekend. Musk estimated that SpaceX would complete 30 missions in 2018, and a cadence anywhere near three launches per month (let alone four) would easily push SpaceX past that goal and provide the company dozens of opportunities to test, launch, recover, and relaunch their new Block 5 version of Falcon 9. As such, while BFR is probably not going to reach fully integrated hardware development or testing in 2018, it is certainly a distinct possibility, and 2019 is far more promising for the company’s interplanetary aspirations.
For now, SpaceX’s 2018 focus is quite explicitly centered on ensuring the reliability of its Crew Dragon – set to debut NET August 2018 – and Falcon 9 as it strives to complete the development of both vehicles. Up next on the company’s busy schedule is another attempt at Falcon Heavy’s inaugural static fire on Saturday afternoon, as well as the flight-proven launch of GovSat-1/SES-16, currently NET January 30.
Follow along live as launch photographer Tom Cross and I cover these exciting proceedings live from both coasts.
Teslarati – Instagram – Twitter
Tom Cross – Instagram
Eric Ralph – Twitter
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
