"Gabriela González guides you through the ground-based experiments LIGO uses to search for gravitational waves. Learn about the detection process and what mysteries they hope to solve about our universe. On September 14, 2015, the Laser Interferometer Gravitational-Wave Observatory detected a gravitational wave for the first time. Just a few months before this groundbreaking discovery, physicist and former LIGO Scientific Collaboration spokesperson Gabriela González describes how the search for gravitational waves has been conducted and what mysteries scientists hope to solve about our universe."