ALMA Dives into Black Hole's 'Sphere of Influence'

National Radio Astronomy Observatory (NRAO): What happens inside a black hole stays inside a black hole, but what happens inside a black hole's "sphere of influence" - the innermost region of a galaxy where a black hole's gravity is the dominant force - is of intense interest to astronomers and can help determine the mass of a black hole as well as its impact on its galactic neighborhood. New observations with the Atacama Large Millimeter/submillimeter Array (ALMA)Atacama Large Millimeter/submil...