STaARS BioScience-4 (Space Technology and Advanced Research Systems): Today a crewmember removed four Experiment containers from the STaARS facility and inserted them into Minus Eighty-Degree Laboratory Freezer for ISS (MELFI-3) unit. The STaARS BioScience-4 investigation examines how oligodendrocyte progenitor cells (OPCs) react to microgravity, specifically the rate at which the cells proliferate and differentiate in …