Written with all of the fierce intelligence and passion for truth that millions have come to expect from Amy Goodman’s reportage, Breaking the Sound Barrier is, in Arianna Huffington’s words ...

When traveling near the speed of sound, the plane came up against a "sound barrier"—as though the velocity of sound represented a wall through which a plane could not move. With technological ...

Specialized Schlieren photography, which shows air flow, was used by NASA to capture the sound waves as Boom Supersonic's XB-1 demonstrator aircraft broke the sound barrier on February 10.

NASA has snapped a stunning image of a supersonic plane breaking the sound barrier – as its creators boast that there was "no audible sonic boom". The Boom Supersonic XB-1 – dubbed a "Son of ...

The breakthrough for the aircraft came following repeated failures to break the sound barrier in previous test flights, with one earlier this month only reaching 728 mph. With Monday’s test ...