iss064e025973

iss064e025973 (Jan., 25, 2021) --- NASA astronaut and Expedition 64 Flight Engineer Kate Rubins services hardware inside the Unity module to support a suite of combustion investigations known as Advanced Combustion Microgravity Experiments, or ACME. The ACME project is a set of six independent studies of gaseous flames that may help to improve fuel efficiency, reduce pollution and prevent spacecraft fires.