As NASA looks to return to the Moon and then go on to Mars, the study of space biology has become an ever-more-important endeavor. Simpson biology professor Aswati Subramanian and her students are playing a role in those studies. Subramanian is on the podcast this week with two of her students, Layna Depping and Sam Derning, to talk about their work, which has won a $30,000 seed grant from NASA. The episode is a co-production with Iowa Public Radio News. Our thanks to Ben Kieffer, host of the IPR News program River to River, and producer Samantha McIntosh for their help.