After the E. coli samples arrive at the ISS, the experiment will examine how microgravity affects the bacteria's ability to thrive while exposed to antibiotics. Since humans started using antibiotics in the mid-20th century, pathogens like E. coli have evolved new genes that make them increasingly resistant to antibiotics. ... The NanoRacks CubeSat Deployer at the International Space Station will send the bacteria on their way, and the experiment will be conducted autonomously inside the cubesat. Both naturally occurring and mutant strains of E. coli will be exposed to different concentrations of antibiotics. "The overall purpose of this is to...