National Security Journal on MSN

Mach 9.6 X-43A ‘Hypersonic Scramjet’ Has a Message for Any Military on Earth

A, an unmanned scramjet testbed, set the world record for an air-breathing aircraft by hitting Mach 9.6 in 2004. -Launched ...
National Security Journal on MSN

The Mach 9.6 X-43A ‘Hypersonic Scramjet’ Has a Message for the U.S. Air Force

Key Points and Summary – NASA’s X-43A wasn’t a paper study—it was a 12-foot, hydrogen-fueled experimental jet that proved an ...

NASA's Mach 9.6 X-43A 'Hypersonic Scramjet' Is Still An Engineering Marvel

NASA's experimental X-43A didn't have a pilot and couldn't fly independently, but its blisteringly high speeds showed that hypersonic flight was possible.
The Aviationist on MSN

NASA’s X-59 QueSST Conducts Maiden Flight

After some scrubbed attempts, NASA’s X-59 QueSST flew for the first time from Air Force Plant 42 in Palmdale on Oct. 28, 2025. In a landmark milestone for ...