KAIROS

KAIROS is the small solid-fueled rocket of Space One, a Japanese startup, launched from its private Spaceport Kii. None of its first three flights, from 2024 to 2026, reaches orbit; the first explodes seconds after liftoff.

Launches

3

Success rate

0%

3 failures

First flight

13 March 2024

Maiden Flight

Last flight

5 March 2026

Flight 3

Builder

Space One

Height

18 m

Diameter

1.4 m

Stages

4

Propellants

Solid, Hydrazine

Payload to LEO

250 kg

Payload to SSO

150 kg