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DeepSpace: Chinese rocket startups make tangible progress on the path to orbital launch
In the last six or so months, a range of small Chinese rocket startups have begun to make serious progress in the nascent commercial industry, including several inaugural orbital launch attempts, extensive propulsion testing, and more. Rising above the fray are a handful of uniquely notable companies: Landspace, Linkspace, OneSpace, and iSpace (creative, I know).
While the names leave something lacking, several companies have truly impressive ambitions and can already point to major tech development programs as evidence for their follow-through. Linkspace is arguably the most interesting company with respect to what they are doing today, while Landspace has the ambition and expertise to build and launch some truly capable rockets in the near-term.
OneSpace & iSpace
- OneSpace recently made its first attempt at orbital launch after completing an OS-M1 rocket, nominally capable of placing 200 kg (450 lb) in a 300 km (190 mi) low Earth orbit (LEO). The March 2019 attempt failed 45 seconds into launch, likely caused by an improperly-installed gyroscope that guided the rocket in the wrong direction.
- This failure is by no means a bad thing. Reaching orbit on one’s first try is extraordinarily rare, particularly for private companies with no prior experience developing launch vehicles. SpaceX’s first three Falcon 1 launches failed before success was found on Flight 4. Rocket Lab’s Electron launch debut was forced to abort before reaching orbit due to faulty third-party communications equipment.
- OneSpace has several additional suborbital OS-X launches and may be able to attempt one additional OS-M1 orbital launch before the end of 2019.
- Down the road, the company wants to enhance its payload capabilities by adding additional solid rocket strap-on boosters to OS-M1 (designated M2 and M4). OS-M4 would be able to launch as much as 750 kg (1650 lb) into LEO.
- iSpace is in a similar boat. Its Hyperbola-1 rocket relies on three solid stages and a liquid fourth stage and is designed to place 300 kg (660 lb) into LEO. iSpace has plans to attempt the company’s first orbital launch as early as June 2019.
- Having already raised more than $100M in investment, iSpace also has strong backing for the development of its next-gen Hyperbola-2 rocket. The methalox-based vehicle will have a reusable booster capable of vertical landings and should be able to launch almost 2 tons to LEO. The rocket’s first launch is expected to occur no earlier than late 2020.
Linkspace
- In April 2019, Linkspace began flight-testing a sort of miniature version of SpaceX’s Falcon 9 Grasshopper testbed. Known as NewLine Baby, the small suborbital prototype is designed to improve the company’s technical familiarity with vertically landing orbital-class rocket boosters after missions. Thus far, hop testing has been a great success.
- Baby weighs 1.5 t (1100 lb), is 8.1m (27 ft) tall, and is powered by five liquid methane and oxygen (methalox) rocket engines.
- The company hopes to transfer the knowledge gained into NewLine-1, a partially reusable orbital-class rocket designed to place 200 kg in LEO. Linkspace could attempt their first orbital launch as early as 2021.
- The two-stage rocket’s booster would separate a few minutes into launch and attempt a vertical landing on a pad or boat, the same approach SpaceX has used with unprecedented success.
- The similarities with SpaceX’s Falcon 9 are honestly not the worst thing. SpaceX has no patent on vertically landing rockets and has never attempted to corner the industry. Copying a successful new paradigm is certainly better than doing nothing.
- (For the record, Blue Origin did the exact opposite and attempted to patent vertically landing rockets at sea in 2014, before the company had conducted a single serious launch and at the same time as SpaceX was already planning barge recoveries of Falcon 9 boosters.)
- One could even say that Linkspace and several other Chinese companies are actually doing better than industry heavyweights like ULA and Arianespace by simply embracing the new paradigm, as opposed to denial, pearl-clutching, and half-measure responses.
Landspace
- Finally, there is Landspace. Perhaps the most exciting company of the bunch, Landspace is developing a fairly large methalox launch vehicle named ZhuQue-2 (ZQ-2). Powered by several fairly large TQ-12 liquid rocket engines, ZQ-2 is designed to launch up to 4t (8800 lb) to an orbit of 200 km (120 mi) and would produce up to 2650 kN (600,000 lbf) of thrust at liftoff, about a third of SpaceX’s Falcon 9.
- The two-stage ZQ-2 is not currently being designed for reusability, but an upgraded three-stage variant (ZQ-2A) would feature a much larger payload fairing and improve payload performance to 200 km by 50%, from 4t to 6t.
- Landspace will attempt ZQ-2’s inaugural launch as early as 2020. Critically, the company is just completed the first full-scale prototype of the TQ-12 engine meant to power the rocket and could begin static fire tests just a month or two from now.
- Tianque-12 (TQ-12) is a fairly unique engine. Powered by liquid methane and oxygen (methalox), TQ-12 uses a gas-generator propulsion cycle and is designed to produce up to 80t (175,000 lbf) of thrust. In a sense, TQ-12 is basically a slightly less powerful methalox variant of SpaceX’s Merlin 1D engine.
- The fact that Landspace is already in a position to begin static fire tests of the engine powering its next-gen rocket bodes very well for the company’s future plans. At a minimum, it likely means that Landspace is much closer to offering multi-ton commercial launch services compared to its competitors.
- Aside from its next-gen ambitions, Landspace has also developed a much smaller three-stage rocket known as ZQ-1. Capable of launching up to 300 kg into LEO, ZQ-1 nearly reached orbit on its October 2018 launch debut, failing midway through its third-stage burn.
- For now, the Chinese launch startup scene is downright frenetic. The title of “first private Chinese company to reach orbit” has yet to be awarded, and more than half a dozen groups are practically racing to secure it.
Mission Updates:
- SpaceX’s CRS-17 Cargo Dragon spacecraft successfully rendezvoused and berthed with the ISS on May 6th.
- Potentially less than two weeks after the Falcon 9’s May 4th CRS-17 launch, SpaceX’s first dedicated Starlink mission is scheduled to occur as early as May 13th, although delays of a few days are likely.
- SpaceX’s second West Coast launch of 2019 – carrying Canada’s Radarsat Constellation – finally has an official launch date – June 11th. The mission will reuse Falcon 9 B1051.
- Falcon Heavy’s third launch remains tentatively scheduled no earlier than June 22nd.
Photo of the Week
Falcon 9 B1056 returned to dry ground less than 24 hours after launching CRS-17 and landing aboard drone ship Of Course I Still Love You (OCISLY). (Tom Cross)
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
