Boom Supersonic will break the sound barrier again Monday, after a successful flight last month. On Feb. 10, Boom Supersonic ...

GREENSBORO, N.C. — Boom Supersonic’s XB-1 is gearing up for another flight. The flight is set to take place around 1:30 p.m.

The second series of supersonic flight tests are scheduled for 1:30 p.m. Monday as part of Boom “scaling up the technology on ...

A supersonic Boom Supersonic flight across the United States — beginning potentially as early as 2029 — could be at least 90 ...