Chinese tests rocket using the same gas used by Coca-Cola to make space flights cheaper, safer, cleaner, and cooler
- Supercritical CO₂ could eliminate some of rocketry's most expensive infrastructure requirements
- Cold launches avoid exposing launch pads to destructive exhaust temperatures exceeding 3,000°C
- Engine ignition occurs only after the rocket clears the launch platform safely
Chinese aerospace startup Z-Trak Space is exploring an unusual launch system using carbon dioxide (CO₂) commonly associated with fizzy drinks rather than rocket exhaust.
The proposal centres on supercritical CO₂, a state achieved when the gas remains above specific temperature and pressure thresholds simultaneously.
Developers believe the approach could lower infrastructure requirements while supporting faster launch schedules for China's expanding commercial space sector.
A cold launch system could reduce dependence on expensive ground facilities
The technology ejects rockets using rapidly expanding high-pressure gas before igniting engines only after reaching a predetermined altitude overhead.
That sequence differs sharply from conventional hot launches where engines ignite directly on launch pads before the vehicle begins climbing skyward.
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