Japan’s H3 rocket lifted off for its seventh mission on Sunday, but an engine failure foiled its attempt to insert a navigation satellite in geostationary orbit. Japan Aerospace Exploration Agency ...

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 ...

Japan’s ambitions for an independent satellite navigation system suffered a significant blow this week after the second major failure of its flagship H3 rocket. The rocket, which was carrying the ...