What kind of object do we think lies in the center of the Milky Way Galaxy?
A)a dense cluster of young, hot stars
B)a gigantic X- ray binary system
C)an enormous collection of dark matter, explaining why we detect no light at all from the galactic center
D)a 3 to 4 million solar mass black hole

Question

Quizplus · Accepted Answer

Observations of stars orbiting the center of the Milky Way suggest the presence of a supermassive black hole with a mass of 3 to 4 million times that of the sun.

What Kind of Object Do We Think Lies in the Center