NASA astronaut and Flight Engineer Ricky Arnold works with the student-designed Genes in Space-5 experiment inside the Harmony module.
iss055e016051 (April 11, 2018) — NASA astronaut and Flight Engineer Ricky Arnold works with the student-designed Genes in Space-5 experiment inside the Harmony module. The genetic research is helping scientists understand the relationship between DNA alterations and weakened immune systems possibly caused by living in space.