Tucson-area satellite sensor firm Geost is rapidly expanding its headquarters and lab spaces in Marana to work on major military contracts.

University of Arizona researchers have mapped more than 200 Tucson subdivisions with racist housing restrictions in their founding documents.

MAP: Arizona coronavirus cases by zip code A live-updating map of novel coronavirus cases by zip code, courtesy of ESRI/JHU. Click on an area or use the search tool to enter a zip code.