Add Yahoo as a preferred source to see more of our stories on Google. American aerospace startup Boom made history on Tuesday by breaking the sound barrier during the test flight of its Boom ...

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"The X-59’s first supersonic flight is a testament to America's enduring leadership in science, engineering and aerospace innovation." When you purchase through links on our site, we may earn an ...

The X-1’s fuselage was designed to resemble a .50 caliber bullet—one of the only shapes known to have stable flight at supersonic speeds. The Bell X-1 hangs today from the ceiling of the National Air ...