NewSpace AtlasSearch

Sidereus Space Dynamics

Italian startup building EOS, a very small reusable rocket meant to reach orbit in a single stage and fly home under a parafoil, with all of its launch gear packed in a shipping container. (1 product in the atlas)

Possible shutdown, unconfirmed: New Space Tracker (retrieved 2026-10-22) lists the company as defunct and says it ended R&D in Italy and Europe in September 2026 to sell its technology and IP. No primary announcement found; the company website showed only 'Under Construction' on 2026-10-22.

Products, by altitude

Launch · From the pad to orbit

  • In development

    EOS

    Tiny reusable one-stage rocket that returns under a parachute

Known rounds

DateRoundAmountLed by
Sep 2023Seed+€5.1MPrimo Space, CDP Venture Capital SGR⁠1

Milestones

  • Jun 2024 First fully integrated system test of an EOS vehicle; the MR-5 main engine fired for about 11 seconds. Company statement⁠2

Sources

  1. European SpaceflightSep 25, 2023
  2. European SpaceflightJul 2, 2024
  3. European SpaceflightJul 1, 2025

Updated Oct 22, 2026 · How we source facts · Suggest a correction