Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...

A National Weather Service flood watch for Concord and the East Bay is expected to remain in effect through 4 a.m. Wednesday.

Federal Immigration enforcement activity occurred in Concord on Saturday, according to the Concord Police Department.

A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft ...

The single-seat jet, a 201-foot-long test model by Boom Supersonic, hit 844 mph just 12 minutes into its latest test flight ...

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

The first reported sighting of U.S. Immigration and Customs Enforcement (ICE) in the East Bay this year was over this weekend in Concord, according to the city’s police ...

Almost 22 years after Concorde made its final commercial flights, a prototype passenger jet is attempting to break the sound ...

Boom, 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. The company's XB-1 ...

California. Bay Area aviators face safety issues, other hurdles in meeting unleaded fuel mandate The XB-1 demonstrator aircraft is the first civil aircraft to break the sound barrier since the ...