Question

Why do you think the milky way is "flat" when observed from the side?

Why do you think the center of the galaxy appears to be empty?​

Answer 1

When you look toward the Galactic Center with your eye, you see a long, thin strip. This suggests a disk seen edge-on, rather than a ellipsoid or another shape. We can also detect the bulge at the center. Since we see spiral galaxies which are disks with central bulges, this is a bit of a top.

Step-by-step explanation:

because of the tensity in the earth surface