How closely have you been following events in Japan? Try The Mainichi News Quiz for May 16 to test your news knowledge. Ready ...

TOKYO -- A Japanese research team has conducted the country's first successful combustion test of a ramjet engine for an ...

Add Yahoo as a preferred source to see more of our stories on Google. China has tested a powerful engine that can carry weapons at remarkable speeds through both air and water. The novel engine ...

Chinese fighter jet mid-flight before airshow - Alert5/Wikimedia Commons/CC BY-SA 4.0 The roots of the jet engine can be traced back to before World War II, and they generally still work on the same ...