The nearby Andromeda Galaxy has a supermassive one of these at its center
It is the 
nearest major galaxy to the Milky Way and was often referred to as .... His result 
placed the Andromeda Nebula far outside our galaxy at a distance of about... [DOC] [TLE] Andromeda Galaxy Facts - Space Facts [PAR] The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way ... at its 
heart, but it also has at least one supermassive black hole hidden at the core.