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SpaceX to upgrade Dragon with the most immersive window ever launched into space

SpaceX has designed a new 'glass dome' version of Crew Dragon for free-flying missions with no need for a docking port. (SpaceX)

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SpaceX and Inspiration4 customer Jared Isaacman have revealed a substantial and unexpected design change made to the Crew Dragon spacecraft that will carry the billionaire and three guests into orbit later this year.

Reminiscent of the beloved “Cupola” (Italian for dome) built by the European Space Agency (ESA) and installed on the International Space Station (ISS) in 2010, SpaceX says it has designed a spectacular ‘glass dome’ window add-on for Crew Dragon. Thanks to some level of newfound commercial interest in free-flying Crew Dragon missions, in which the spacecraft would operate as its own miniature space station for several days, SpaceX concluded that it could fully remove the spacecraft’s docking adapter.

In its place, SpaceX has apparently designed a huge, monolithic, dome-like window that promises to offer a viewing experience likely unmatched in the history of spaceflight.

A Russian cosmonaut is pictured enjoying the ISS Cupola. (NASA)

While the ISS Cupola is reminiscent of Crew Dragon’s glass dome, the two windows are only similar in the sense that they’re both space-based viewing windows. Beyond that, the Dragon Dome is more akin to the ultimate realization of the platonic ideal that ESA engineers tried to achieve with the Cupola. Featuring an approximate 2:1 ratio of framework and structural support material to glass, the Cupola’s central circular window has an uninterrupted diameter of 80 cm (2.6 ft), while the whole assembly has a total internal diameter of ~2m (6.6 ft) and a depth (the ‘height’ of the conical windowed area) of about 50 cm (1.6 ft).

Assuming SpaceX is explicitly designing the dome to integrate with Crew Dragon’s existing International Docking Adapter (IDA) support structure, it could have a diameter as large as 1.4m (~4.5 ft) and a depth of 60 cm (~2 ft; assuming a perfect hemisphere for maximum strength). If SpaceX’s official render is correct, the dome will also be monolithic, meaning that the glass window itself would be completely uninterrupted by structural supports.

A NASA astronaut monitors a SpaceX Cargo Dragon spacecraft through the ISS Cupola. (NASA)
Assuming a semi-modular design, a Dragon’s ‘dome’ would likely be installed where the innermost red ring (a vacuum seal) is located – a diameter of 1.3-1.4m (4.3-4.6 ft). The ISS Cupola’s total internal diameter is about the same as the larger red nosecone seal. (NASA)

Much like the Cupola, which has foldable ‘petals’ that serve as shades and micrometeorite shields when the module isn’t in use, Crew Dragon’s glass dome would be safely enclosed inside the spacecraft’s nosecone. It’s unclear what material the dome would be made out of, given that large, monolithic, bulletproof domes are a technology that effectively does not exist. At least one company, Surmet, specializes in manufacturing aluminum oxynitride (“transparent aluminum”) windows, including small domes for things like missile sensor pods.

However, the maximum size of those commercial ALON domes is roughly half a foot in diameter and there is no evidence that anyone has attempted the produce an ALON dome even a full magnitude smaller than what SpaceX’s Dragon window would require. This is to say that if SpaceX has found a way to produce massive monolithic windows and domes rated for space travel, it will effectively leap from a total outsider to a de facto leader of the niche bulletproof glass dome industry. It’s worth noting that CEO Elon Musk has stated that Tesla’s Cybertruck will feature “transparent metal” windows, which would likely make the EV company the world leader in ALON window mass-production – expertise that SpaceX could borrow from given their history of joint materials R&D.

In a live March 30th event celebrating the final crew selection, SpaceX director Benji Reed stated that NASA has been closely involved with with development of Dragon’s dome window. Most notably, he strongly implied that flight-proven Crew Dragons would be able to swap between dome and docking hardware with enough ease that a Dragon flown with a dome on a SpaceX tourist mission could still be modified to support NASA astronaut launches, thus ensuring commonality within the Dragon ‘fleet’ SpaceX is building.

SpaceX has implied that its Dragon Dome will debut as early as September 2021 on billionaire Jared Isaacman’s Inspiration4 mission – currently on track to become the world’s first fully private astronaut launch.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla has a Cybercab problem nobody saw coming

Tesla’s Cybercab line now builds robotaxis faster than Tesla can deploy them, Lars Moravy says.

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Tesla’s Cybercab line in Texas can now build the two seat robotaxi faster than the company can put it into service, according to Lars Moravy, Tesla’s Vice President of Vehicle Engineering. “We don’t run every day because the line can run so fast. It’s currently outpacing our deployments,” Moravy said in a new Cybercab deep dive from Munro Live. “So, it’s a bit of a race right now. Who’s going to go faster? Right now the manufacturing line’s ahead.”

Tesla’s official Robotaxi account shared a Cybercab analysis video on X on Monday, calling it a “Cybercab engineering deep dive.” Moravy’s comments go further than what he told analysts on the Q3 earnings call last week, when he said the Cybercab line’s listed capacity of more than 125,000 units a year undersells what it can actually run.

The tour shows where that speed comes from. Tesla’s unboxed process splits the Cybercab into front, rear, side and center modules that are built and tested on their own before they meet on a short final line. That final line has just 25 fully automated stations, which Tesla’s team estimated is a fifth to a tenth of what a Model Y needs. The full line is about 78% automated, the framing line is already at 100%, and the layout uses roughly 50% less floor space per vehicle. The stated goal is “100% automation in 10 second cycle time,” or one finished Cybercab every 10 seconds.

Tesla also deleted the paint shop. Only the side modules are coated, and the exterior panels get their color inside the molding machine. Engineers said the car is designed to run at least 500,000 miles, which matters for a vehicle that will spend most of its day carrying riders.

The battery got the same treatment. The Cybercab uses an 88S6P pack of 4680 cells in a steel enclosure, a first for Tesla, with each module potted separately so a single failed module can be swapped instead of the whole pack. Wireless battery management boards replace a wiring harness, and new contactors are fast enough to drop the pyro fuse entirely. Tesla’s battery director graded the pack an A minus, compared with a D for the Model Y structural pack and a B minus for Cybertruck. Up front, the drive unit runs an 11:1 gear ratio versus roughly 9:1 on most Teslas, since the Cybercab does not need a high top speed.

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The deployment side is now the bottleneck Moravy described. Tesla had more than 50 Cybercabs working the Formula 1 weekend in Austin, and Texas records show 463 Cybercabs registered. Tesla said on its earnings call that Cybercab service will launch in Dallas next month, and Moravy said the company is aiming to get Cybercabs to customers by the end of 2026. Every unit built so far has gone into Tesla’s own fleet since the line moved into volume production in April.

Munro Live also asked when it could get a Cybercab to tear down. Tesla’s answer: “Not yet.”

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How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady

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Credit: SpaceX

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:

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.

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Tesla Assisted Driving expands to tenth EU country

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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’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.

Tesla starts showing how FSD will change lives in Europe

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.

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