Kate Rubins, NASA Astronaut (IMAGE) NASA/Johnson Space Center Caption NASA astronaut Kate Rubins not only became the first person to sequence DNA in space, but the sequenced more than a billion bases during her time aboard the space station. Credit NASA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.