The company is also working on the Mk-II Aurora spaceplane, a demonstrator aircraft that combines the performance of a rocket with the quick turnaround of an aircraft. While Mk-II is a tech demonstrator, it will also be used as a suborbital vehicle for climate and scientific payloads. In the long term, Mk-II will inform the design of Dawn's Mk-III, the company's orbital vehicle for launching satellites.

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