Answer: 10,000 light-years thick
Step-by-step explanation:
The Milky Way galaxy is a flat disk about 100,000 light years in diameter and 1000 light years thick.The Milky Way is a barred spiral galaxy, in which a bar-shaped region at the center is surrounded by a disk of stars and gas clouds that exist mainly in its four spiral "arms." It is estimated to contain 100–400 billion stars and more than 100 billion planets. The Milky Way is constantly moving (rotating).