One curious fact about the Milky Way Galaxy, discovered in the past two decades, is that
A) a significant fraction of its mass is in the form of globular clusters, distributed in a spherical halo centered on the galactic center.
B) a large black hole is slowly clearing out the mass near the galactic center, leaving a cold, dark void.
C) enormous amounts of energy are pouring out of a compact but very massive source at its center.
D) most of its mass is in the spiral arms extending out into space.

Question

Quizplus · Accepted Answer

The correct answer is that enormous amounts of energy are pouring out of a compact but very massive source at the Milky Way's center, which is identified as a supermassive black hole named Sagittarius A*. This discovery has been crucial in understanding the dynamics and structure of our galaxy.

One Curious Fact About the Milky Way Galaxy, Discovered in the Past