On February 10, in the skies above the Mojave Desert, the Boom Supersonic XB-1 test jet roared past Mach 1, tearing through the sound barrier. But this time, there was no need to take it on faith.

NASA has released a new image providing photographic evidence of Boom Supersonic's XB-1 prototype aircraft breaking the sound barrier. Captured on the second supersonic flight, it used a special ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...