Japan's Space One Kairos rocket explodes on inaugural flight

Japan's Space One's small, solid-fuelled Kairos rocket exploded shortly after its inaugural launch on Wednesday as the firm tried to become the first Japanese company to put a satellite in orbit. The 18-metre (59 ft), four-stage solid-fuel rocket exploded seconds after lifting off just after 11:01 a.m. (0201 GMT), leaving behind a large loud of smoke, a fire, fragments of the rocket and firefighting water sprays near the launch pad, visible on local media livestreams of the launch on the tip of mountainous Kii peninsula in western Japan.

Space One said the flight was "interrupted" after the launch and was investigating the situation. There was no immediate indication of what caused the explosion, or whether there were any injuries. Pads typically have no people anywhere nearby during a launch. Space One has said the launch is highly automated and requires roughly a dozen staff at the ground control centre.
Kairos carried an experimental government satellite that can temporarily replace intelligence satellites in orbit if they fall offline.

Space One had planned the launch for Saturday but postponed it after a ship entered the nearby restricted sea area.