VLA image of M106 -

Very Large Array radio telescope image of the rotating central disk,

as traced by Masers, superimposed on an optical image. The high rotation

velocity indicates that the central object of less than a light year diameter

contains some 36 million Solar masses, the highest concentration ever found for

a galactic central object (Massive Dark Object, MDO; many scientists believe

that the MDOs are massive Black Holes).

NRAO press release concerning this discovery and photo.