Arianespace and ESA: Developing Low-Cost and Green Engine Technology

The European Space Agency (ESA) and the launch services company Arianespace are developing an ultra-low-cost reusable rocket engine. Their Prometheus will not only cost a tenth of the previous favorite Ariane 5’s Cilcain 2 engine but also use liquid oxygen-methane propellants that are more environmentally friendly. The first demonstrators for the new engine could take place before the end of the year.



Awaiting Prometheus with Ariane 6

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