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 ...
Morning Overview on MSN

NASA’s X-43A hypersonic jet still stuns engineers today

A, a groundbreaking hypersonic scramjet vehicle, achieved an unprecedented speed of Mach 9.6, solidifying its status as the fastest atmospheric combustion-engine air vehicle in the world. This ...
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 ...