Astronomers have recently concluded the Metal Abundances across Cosmic Time (MACT) Survey, led by UofA alum Dr. Chun Ly, using data from the MMTO and Hectospec. These new observations are crucial for characterizing the physical conditions and properties of gas in galaxies over time. This temperature-based metallicity study of nearly 160 galaxies is the first to span 8 billion years of cosmic time to understand the chemical enrichment and evolution of these galaxies. Read more about the new results here and here.