Sierra K-8 School is one of six schools representing Arizona in the national STEM (Science, Technology, Engineering, and Mathematics) competition.

The biggest ambassador of Cologuard, the title sponsor of Tucson’s annual PGA Tour Champions golf tournament, had to withdraw due to a shoulder injury.

While orbiting telescopes like the Hubble Space Telescope or the James Webb Space Telescope give researchers a unique view of the cosmos – particularly because they can see light blocked by the ...