Earth is located in the Milky Way galaxy, specifically in one of its spiral arms known as the Orion Arm or Orion Spur. The Milky Way is a barred spiral galaxy, and Earth resides within the galactic disk, which is a flat, rotating structure containing stars, gas, and dust.
To be more precise, our solar system, which includes Earth, is located about 27,000 light-years from the Milky Way's galactic center. The galactic center is a region of high density and activity, believed to house a supermassive black hole called Sagittarius A*.
From our vantage point on Earth, when we look up at the night sky, we see a band of stars that form the Milky Way galaxy. However, it's important to note that our view of the Milky Way is somewhat obstructed by interstellar dust and other objects, which can make it difficult to observe the galaxy's full structure.
The Milky Way itself is just one of billions of galaxies in the universe, and our location within it provides us with a unique perspective on the vastness and complexity of the cosmos.