Defense contractor Lockheed Martin recently announced plans to developed the SR72 – a hypersonic unmanned aircraft that would be the successor to the famous SR71 BlackBird long-range reconnaissance aircraft developed in the 1960’s. The new aircraft will be able to ...

Conceptual drawing of a supersonic biplane.(Image: Christine Daniloff/MIT News based on an original drawing courtesy of Obayashi laboratory, Tohoku University) Almost a decade after the only supersonic passenger airliner retired from active service, a group of researchers at MIT stumbled ...