Concept art of DARPA's Hypersonic Air-breathing Weapon Concept (HAWC).
On Monday, the Defense Advanced Research Projects Association announced it had successfully tested an air-breathing hypersonic…
A B-52 carries an ARRW on a captive carry flight over Edwards Air Force Base in 2019.
U.S. Air Force photo by Christopher Okula
The U.S. Defense Advanced Research Projects Agency tried again to test a hypersonic…