The test flight of the XB-1 aircraft is a step in manufacturer Boom Supersonic's goals of building a supersonic passenger jet.

Independently developed jet makes new record, adding to its rigorous series of human-piloted test flights that will prepare its eventual successor, Overture.

Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time the company achieves the feat, and you can watch the historic action live.