Meet the Expert: Dr. Thomas Zurbuchen, Associate Administrator for the Science Mission Directorate at NASA from 2016 to 2022  Thomas H. Zurbuchen, known in the space community as Dr. Z, is a Swiss-American astrophysicist, leader, and innovator. He was the longest continually serving Head of Science at NASA from October 2016 through 2022, the leading… Continue Reading Episode 163: How Can We See the Universe in a New Way?