Newlin Weatherford is a CTAC postdoctoral fellow specializing in stellar dynamics. He uses state-of-the-art simulations of star clusters to study how stars escaping from these clusters produce elongated substructures in our Galaxy known as stellar streams. Modeling these streams and perturbations to them is essential to understanding the history of our Galaxy and potentially to inferring the nature of dark matter. He also studies the dynamics of star clusters' central black hole populations and develops methods to detect them. This work is relevant to the production of compact binaries, electromagnetic transients, and gravitational-wave events.