Boom Supersonic's chief test pilot Tristan "Geppetto" Brandenburg took off in the company's XB-1 jet from the storied Mojave Air & Space Port in California this morning under mostly clear skies ...

Boom Supersonic's XB-1 jet sets new speed record during 7th test flight : Read moreThe author has made a common mistake in this article by associating Mach 0.82 with 629 mph.