Clifford M. Will is a world-leading theorist in the verification of general relativity, black holes and gravitational waves. He received his Ph.D. in 1971 from Caltech, and has been on the faculty of Stanford, Washington University and the University of Florida, where he is currently Distinguished Professor.
Nicolás Yunes is Professor of Physics at the University of Illinois at Urbana-Champaign and Founding Director of the Illinois Center for Advancted Studies of the Universe. Before joining Illinois, he was an Associate Professor at Montana State University, where he co-founded the eXtreme Gravity Institute. He is the author of several review articles on tests of General Relativity and over 170 research papers.