Astronaut Josh Cassada works on the BioNutrients-2 investigation

iss068e036904 (Jan. 4, 2022) --- NASA astronaut and Expedition 68 Flight Engineer Josh Cassada works in the International Space Station's Harmony module on the BioNutrients-2 investigation that uses genetically engineered microbes to provide nutrients, and potentially other compounds and pharmaceuticals, on demand in space.