Richard Branson, startup unveil supersonic plane

Virgin Group founder Richard Branson teamed with Denver startup Boom to unveil a prototype for a supersonic passenger plane.

The XB-1 Supersonic Demonstrator, nicknamed Baby Boom, is designed to fly at 1,450 mph.

Test flights are planned late next year for the plane that could travel from New York to London in three and a half hours. That's roughly half the time it takes now.

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