Dirk Schulze-Makuch is professor for planetary habitability and astrobiology at the Technical University Berlin, Germany, and also adjunct professor at Washington State University and Arizona State University. He obtained his Ph.D. at the University of Wisconsin-Milwaukee, and worked afterwards as senior project hydrologist at Envirogen, Inc. Dirk continued his academic career as an Assistant Professor at the University of Texas at El Paso. During that time he was also a faculty fellow at the NASA Goddard Space Flight Center. In 2004 he took a faculty position, first as associate professor, then as full professor at Washington State University. Dirk received the Friedrich-Wilhelm Bessel Award from the Humboldt Foundation for extraordinary achievements in theoretical biology in 2011. Since 2013 Dirk is professor at the Technical University Berlin, where he leads the Dry Limit of Life Project. He published in the greater research field of habitability and astrobiology nearly 200 scientific articles and also 9 books, the latest being The Cosmic Zoo: Complex Life on Many Worlds.