While significant progress has been made due to the advent of multi-dimensional numerical simulations, the exact nature of the core-collapse supernova has yet to be fully illuminated. Detecting gravitational waves from a core-collapse supernova would give us insight into the explosion mechanism. I will discuss the current status of core-collapse gravitational-wave astronomy, the progress made over the last decade, and open questions. Based on the aforementioned topics, I will motivate and describe the research I am currently performing at the department.