PARIS — The European Space Agency on Dec. 14 contracted with ArianeGroup to design, build and tests two prototypes of the reusable, LOX-methane Prometheus rocket engine, with test-bed firings to occur from 2020.
Prometheus began as a program at the French space agency, CNES, and was adopted by ESA government ministers in December 2016. The contract signed Dec. 14 is the second tranche of a work package with a total value of 75 million euros ($88 million). The work began with a smaller contract for an initial 7.5 million euros, signed . . .
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