European Sovereignty Monitor

Defence and space

Europe's Themis reusable rocket demonstrator slips to 2026

CNES and ArianeGroup's Themis reusable first-stage demonstrator is reported to be slipping its first hop test from late 2025 into 2026, programme insiders said, extending years of delay to Europe's only reusable-rocket project.

Reported Editor-read European Spaceflight, 6 June 2025

What it does not test. It does not carry an official CNES or ArianeGroup confirmation of the new date, only insider sourcing.

How this item counts. This item is dated before the index starts on 1 January 2026, so it does not count in the European Sovereignty Index.

How this item was made. Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-10-20. How the record is made

What the tags mean: VerifiedReportedAI-draftedAI-drafted, editor-readHuman-writtenWhat the tags mean

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