Platner controversies put Democrats in a political bind

Maine Senate candidate Graham Platner’s mounting controversies are testing the willingness of Democratic voters and ...
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 air-breathing engine could fly at nearly ten times the speed of sound. -It ...