News
NASA head hints that reusable rocket cos. like SpaceX will enable Moon return
In a series of thoroughly unexpected and impassioned introductory remarks at one of several 2018 Advisory Council meetings, NASA administrator Jim Bridenstine bucked at least two decades of norms by all but explicitly stating that reusable rockets built by innovative private companies like SpaceX and Blue Origin will enable the true future of space exploration.
Incredibly, over the course his fascinating hour-long prelude, Bridenstine effectively mentioned NASA’s own SLS rocket and Orion spacecraft – under development for the last decade at a cost of at least several tens of billions of dollars – a total of one time each. Instead, heavily emphasizing the absolute necessity that NASA’s next major human exploration project be sustainable, the administrator spoke at length about the foundational roles that international and domestic space agencies and private companies will need to take on in order to make NASA’s on-paper return to the Moon both real, successful, and useful.
Aside from his arguably brave (but spot-on) decision to all but ignore Boeing and Northrop Grumman’s SLS rocket and Lockheed Martin’s Orion spacecraft over the course of an hour spent speaking about the future of NASA’s human exploration of the Moon and on spaceflight more generally, Bridenstine had nothing but praise for recent successes in the American aerospace industry.
Most notably, he spoke about his belief – at least partially stemming from an executive order requiring it – that the only way NASA can seriously succeed and continue to lead the world in the task of human space exploration is to put an extreme focus on sustainability. Judging from his comments on the matter, the new NASA/Federal buzzword of choice is just a different way to describe hardware reusability, although it certainly leaves wiggle room for more than simply avoiding expendable rocket hardware.
“It’s on me to figure out how to [return to the Moon] sustainably. … And this time, when we go, we’re gonna go to stay. So how do we do go sustainably? Well, [we take] advantage of capabilities that didn’t exist in this country even five or ten years ago. We have commercial companies that can do things that weren’t possible even just a few years ago … to help develop this sustainable [Moon exploration] architecture.” – NASA Administrator Jim Bridenstine, 08/29/2018
While it might not look like much (aside from a “no duh” statement) to anyone unfamiliar with the trials and tribulations of NASA bureaucracy and politicking, this quote – directed at an audience of senior NASA scientists and managers and independent experts – is absolutely extraordinary in the context of NASA’s history and the formulaic eggshells NASA administrators have traditionally been forced to walk on when discussing American rocketry.
Not only is SLS/Orion utterly and conspicuously absent in a response to the “how” of starting a new wave of lunar exploration, but Bridenstine also almost explicitly names Blue Origin and SpaceX as torchbearers of the sort of exceptional technological innovation that might revolutionize humanity’s relationship with space. By referring specifically to “commercial companies that can do things that weren’t possible even just a few years ago”, the only obvious answers in the context of serious human exploration on and around the Moon are Blue Origin and SpaceX, both of which managed their first commercial rocket landings in late 2015.
Bridenstine went even further still, noting that NASA will need not just reusable rockets for this sustainable lunar exploration, but also reusable orbital tugboats (space tugs) to sustainably ferry both humans and cargo to and from Earth and the Moon and reusable lunar landers capable of many trips back and forth from space stations orbiting the moon. At one point, he even used SpaceX CEO Elon Musk’s (in)famous and well-worn analogy of commercial airlines to emphasize the insanity of not using reusable rockets:
“We have reusable rockets [now]… Imagine if you flew here across the country to [NASA Ames] in a 737 and when the mission was over, you threw the airplane away. How many of you would have flown here?” – NASA Administrator Jim Bridenstine, 08/29/2018
At today's NASA Advisory Council (NAC) meeting, Administrator Jim Bridenstine says the next hop to the moon is going to be sustainable – and will require reusable spaceflight hardware. Uses the same airplane analogy @ElonMusk does when it comes to explaining advantages.
— Emre Kelly (@EmreKelly) August 29, 2018
Reusable rockets lead the charge
It may be generous to include Blue Origin side by side with SpaceX, given the fact that its New Shepard rocket is extremely small and very suborbital, but the company does have eyes specifically set lunar landers and outposts (a project called Blue Moon) and is developing a large and reusable orbital-class rocket (New Glenn) set to debut in the early 2020s.
-
- Falcon Heavy’s side boosters seconds away from near-simultaneous landings at Landing Zones 1 and 2. (SpaceX)
-
- We’re not here just yet, but SpaceX is pushing hard to build BFR and get humanity to Mars as quickly as practicable. (SpaceX)
-
- Blue Origin’s aspirational future, the highly reusable BE-4 powered New Glenn rocket. (Blue Origin)
-
- Blue Origin’s Blue Moon concept, set to begin experimental lunar landings as early as 2022 or 2023. (Blue Origin)
SpaceX, while focused on Mars colonization, has also expressed a willingness to participate in any sort of lunar exploration that NASA or other international space agencies might have interest in. Currently in the middle of developing its own massive and fully reusable rocket, known as the Big F_____ Rocket (BFR), SpaceX nevertheless already has a flight-tested, highly successfully, and unbeatably cost-effective family of reusable Falcon rockets capable of affordably launching significant mass to the Moon. In fact, both NASA and ESA (European Space Agency) are already seriously considering SpaceX’s Falcon Heavy as the launch vehicle of choice for several critical pieces of a Moon-orbiting space station, expected to launch no earlier than the early to mid-2020s.
Whether or not Bridenstine’s incredible and eloquent statements translate into tangible changes to NASA’s long-term strategy, it’s quite simply refreshing to hear a senior NASA executive – let alone the administrator – speak freely and rationally about the reality of what is needed to enable a truly new era of human spaceflight and exploration.
For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!
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
