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SpaceOne's Kairos 3 Ends Flight About One Minute After Launch, Losing Five Satellites

The company cites a likely trigger from the autonomous flight-safety system, with an investigation underway.

Overview

  • SpaceOne said the rocket initiated a flight-termination 68.8 seconds after liftoff during first-stage burn at roughly 29 kilometers in altitude.
  • Live footage showed breakup after the self-termination, and the vehicle is believed to have fallen into the Pacific about 150 kilometers south; local authorities reported no ground damage.
  • None of the five payloads reached orbit, including satellites from Taiwan’s national space agency and a Tokyo high school project.
  • Executives apologized at a briefing and said root-cause analysis will take time, declining to set a date for subsequent launches.
  • This is the third consecutive Kairos failure since 2024, a setback for Japan’s effort to expand domestic small-satellite launch capacity.