We visited Boom Supersonic's hangar in Mojave, California, as the company prepared to break the sound barrier with its XB-1 ...

As the UT community celebrates the birth of Kim Caldwell's son, they're remembering that time another Lady Vols coach had a ...

Boom, the American company building what promises to be the world's fastest airliner, broke the sound barrier for its first ...

Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...

Trump ended use of a border app to allow migrants to enter the country on two-year permits with eligibility to work, ...

President Trump threatened tariffs on Colombia to ensure the country accepts U.S. military flights carrying migrants.

The CallAir snowplane, built in Afton, was a revolutionary vehicle. It made it possible to deliver mail, supplies and ...

The jet stream is like a river of west-to-east winds in the upper atmosphere. Airplanes use it like a highway.

The number of suspects arrested — several hundred per day — has been outpaced by the psychological impact of the attention on ...