David Wichner

A University of Arizona optics professor has been honored by a national group for an invention that is helping the nearly blind to see clearly.

Three seats are up for grabs on the Arizona Corporation Commission this November. Here's where the candidates stand on clean energy.

For Star subscribers: Tucson-area homeowners have been stuck with high bills or incomplete or dead solar systems with little recourse after at least four installers have gone belly up.

A new Arizona microbusiness loan program aims to foster economic development and job creation in communities statewide, providing financial education and training for borrowers.

Tucson Electric Power is planning to build a second, large battery system in southeast Tucson to store solar and other energy to help meet demand peaks.

For Star subscribers: The Air Force has released a draft study supporting proposed changes to flight rules over 10 military training airspaces across Arizona and New Mexico.

Gas prices fell across Arizona and the U.S. this week amid weaker demand but could rise if a developing storm hits Gulf of Mexico oil production, AAA says.

The owner of a Tucson solar company accused of taking out loans for home installations that weren't started or completed is now facing federal bank fraud charges.

Shares in RTX, parent of Raytheon’s Tucson missile-making operation, surged Thursday after the company's adjusted earnings beat analyst forecasts.

A tiny satellite built in Tucson by University of Arizona students and a UA tech startup was feared lost in space but has been found.