The union representing 1,900 hourly workers at Southern Arizona's largest private employer went on strike against Raytheon Missile Systems at 12:01 a.m. today.

Raytheon has won a new $1.1 billion contract from the U.S. Navy to produce advanced missiles, the latest and largest award for the program and a favorable development for Tucson, where most of the ...

A joint venture between RTX Corp.’s Tucson-based Raytheon division and Lockheed Martin was recently awarded a contract for work on the Javelin missile system, part of a $1.3 billion project.