Something is alight in Sagittarius A* (Sgr A*), the supermassive black hole in the heart of our Milky Way galaxy. In a multi-institutional study, astronomers have created the first three-dimensional visualization of a high-energy flare from Sgr A*. This accomplishment, achieved using data collected by the Atacama Large Millimeter/Submillimeter Array (ALMA), provides distinctive insights into the turbulent surroundings of black holes. “This is the first three-dimensional reconstruction of gas rotating close to a black hole,” says Katie Bouman, assistant professor of computing and mathematical s…