TOKYO -- Japan's planned May launch of its large H-IIA rocket will be postponed until at least August, the country's space agency announced Friday.
Ongoing investigation into March H3 engine failure root of most recent setback

Japan's H3 rocket, which launched in early March, self destructed after an engine failure. (Photo by Tomoki Mera)
TOKYO -- Japan's planned May launch of its large H-IIA rocket will be postponed until at least August, the country's space agency announced Friday.