Somewhere over the California desert, a small white aircraft punched through the sound barrier twice, and nobody on the ground heard a thing. That, at least, is what Boom Supersonic is telling the ...
On a clear morning over the Mojave Desert in January 2025, a dart-shaped jet called XB-1 punched through Mach 1 and kept climbing. The aircraft, built by Denver-based startup Boom Supersonic, became ...
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