Japan's MOMO-F4 private rocket falls into ocean minutes after takeoff
A Japanese space company Interstellar Technologies said on Saturday that its privately developed sounding rocket MOMO-F4 had successfully launched but fell down into the ocean shortly after due to an on-board computer systems failure that caused the engine to prematurely shut down. "Due to an abnormality of the spacecraft's on-board computer systems, the engine automatically shut down and