Supersonic air travel could be making a comeback, thanks to the work of companies like Boom. We visited Boom's hangar in Mojave, California, to learn about what it takes to resurrect the dream of ...

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California, on Tuesday.

If successful, it could pave the way for the first US-built commercial supersonic jet to enter the market, reigniting the ...