NASA astronaut Ricky Arnold is pictured working inside NASA's U.S. Destiny laboratory module on an experiment that extracts RNA from biological samples to help researchers decipher the changes in gene expression that take place in microgravity.
iss056e158445 (Aug. 27, 2018) — NASA astronaut Ricky Arnold is pictured working inside NASA’s U.S. Destiny laboratory module on an experiment that extracts RNA from biological samples to help researchers decipher the changes in gene expression that take place in microgravity.