KAIROS
Small solid-fuel rocket for launching satellites from Japan
Space One
Tokyo company backed by Canon Electronics, IHI Aerospace, Shimizu and the Development Bank of Japan that flies the solid-fuel KAIROS rocket from its own spaceport. All three launches through March 2026 failed.
Products, by altitude
Launch · From the pad to orbit
Testing ![]()
On the ground · 0 km · Earth’s surface
In service ![]()
Spaceport Kii
Private rocket launch site on Japan's southern coast
Milestones
- Aug 2026 Signed a memorandum of understanding with Sarmony on satellite launches, targeting a KAIROS launch in 2028. Company statement1
Sources
Updated Oct 22, 2026 · How we source facts · Suggest a correction