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Vast Secures Arnaud Prost for 2027 Crew to Haven-1 as It Pushes Post‑ISS Commercial Station Plan

The announcement signals a move to scale private, serially produced orbital modules to replace the ISS and lessen reliance on Russian crewed launches.

Overview

  • Vast announced on Thursday that French astronaut Arnaud Prost will join the inaugural spring 2027 crewed mission to its Haven-1 orbital module and that the company has opened a European headquarters in Paris.
  • The Haven-1 module is being assembled to stay in orbit for three years, host four separate two‑week missions, and accommodate up to four crew members for short-duration tests and scientific work.
  • Vast says it holds NASA contracts and will use SpaceX Falcon 9 rockets with Crew Dragon for the two crewed flights it has announced, making early operations dependent on that launch system.
  • The company plans to produce modules in series to cut per‑module costs by an estimated five to ten times, with a long‑term goal of a nine‑module station and four modules before 2030 to support six‑month missions.
  • If its initial flights succeed, Vast’s approach could speed a commercial handover as the ISS nears planned deorbit in 2030, but the plan raises questions about single‑provider launch dependence and competition with firms like Axiom and Blue Origin.