The Japan Aerospace Exploration Agency (JAXA) has conducted a Mach 5 ramjet combustion test on an experimental hypersonic aircraft developed jointly with three Japanese universities. The experimental ...

In brief: Researchers in China have successfully tested the world's first boron ramjet engine that can operate both in the air and underwater. The engine was originally conceived for hypersonic ...

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 ...

For years, the United States has trailed behind Russia and China in hypersonic weapons. A new engine prototype by Lockheed Martin and General Electric could help it catch up. The United States is ...