iss048e069880 (9/3/2016) --- NASA Astronaut Kate Rubins makes preparations for the Run 2 sample initialization of the Biomolecule Sequencer experiment. The Biomolecule Sequencer seeks to demonstrate, for the first time, that DNA sequencing is feasible in an orbiting spacecraft. A space-based DNA sequencer could identify microbes, diagnose diseases and understand crew member health, and potentially help detect DNA-based life elsewhere in the solar system.