NASA astronaut Nick Hague replaces hardware inside the Combustion Integrated Rack

iss059e085880 (May 31, 2019) --- NASA astronaut Nick Hague replaces hardware inside the Combustion Integrated Rack supporting the Advanced Combustion via Microgravity Experiments (ACME). ACME is a set of five independent studies researching improved fuel efficiency and reduced pollutant production in practical combustion on Earth, as well as spacecraft fire prevention through innovative research focused on materials flammability.