Answer: Earth is a part of this galaxy so the rest is not easily visible.
Step-by-step explanation:
Milky Way consists of 200 billion stars, dust and gas. It solar system lies in the center of the galactic center. 20 light years above the plane of galaxy. The galactic center consists of huge number of stars which keep on rotating in the center. It is considered as a supermassive black hole. The planets also rotate in the galaxy. The earth is the part of the solar system which is the part of the galaxy. The earth is not visible in the galaxy so we cannot observe the entire galaxy from the earth.