SpaceX's after-midnight Falcon 9 launch didn't just advance the state of the art in rocket landings... the cargo it launched is groundbreaking, too. NASA notes that the mission is the first to bring a DNA sequencer to space. The Biomolecule Sequencer will not only demonstrate that you can sequence genes in microgravity, but provide a valuable service to the International Space Station's crew. They can use it to check up on crew health, identify microbes and maybe (just maybe) detect life beyond Earth. It's dramatically more convenient than before, when astronauts had to wait months to send DNA samples back to Earth.