Q. Daniel Wang is a professor in the Astronomy Department at University of Massachusetts Amherst. He received his Ph.D. in astronomy in 1990 from Columbia University and was awarded the 1992 ASP Robert J. Trumpler Award for Outstanding North American Ph.D Dissertation Research in Astronomy. He was then a NASA Edwin P. Hubble Postdoctoral Fellow at University of Colorado and later a Lindheimer Fellow at Northwestern University. He was also a member of the Institute for Advanced Study at Princeton and a Raymond and Beverley Sackler Distinguished Visiting Astronomer at University of Cambridge. He was honored as the Siyuan Visiting Professor, then the Yixing Visiting Chair Professor in the School of Astronomy and Space Science at Nanjing University, and most recently as a Fulbright U.S. Scholar and a visiting professor at Pontiﬁcia Universidad Cat´olica de Chile.