Dr. Katie Bouman: "Imaging the Unseen: Taking the First Picture of a Black Hole"
It has been theorized for decades that a black hole will leave a “shadow” on a background of hot gas. Taking a picture of this black-hole shadow could help to address a number of important scientific questions, both on the nature of black holes and the validity of general relativity. Unfortunately, due to its small size, traditional imaging approaches require an Earth-sized radio telescope.