Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
* WHAT...Near-freezing temperatures as low as 32 possible. * WHERE...The East Bay and San Francisco Bay Shoreline, Monterey Bay and the Big Sur Coast, and The Santa ...
More than two decades after Europe’s failed attempt at a supersonic airliner, the USA is on track to make it work. View on ...