jsc2024e066520 (1/31/2024) --- Glendora High School students test ethanol concentrations to minimize diffusion loss. Their experiment, Cyanobacteria (Trichormus variabilis) Growth in Extreme Conditions of Microgravity, is part of the Nanoracks-National Center for Earth and Space Science Education-Surveyor-Student Spaceflight Experiments Program Mission 18 to ISS (Nanoracks-NCESSE-Surveyor-SSEP).