The hydrogen-fueled engine powering the initial launch of the $1.5 billion H3 rocket in Japan worked flawlessly. But it was a more traditional second-stage engine failure after takeoff that doomed the ...

Japanese startup Space One aborted the launch of its Kairos rocket shortly after takeoff from the Spaceport Kii launch site in Wakayama Prefecture. The rocket lifted off before appearing to lose ...

Japan's privately developed Kairos No. 3 rocket failed shortly after liftoff on March 5, forcing operators to terminate the mission. The launch, conducted by Tokyo-based company Space One in western ...

Kairos failed on Wednesday (March 4), as it did on its first two launches. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, ...