The Milky Way Galaxy Essay Example | Topics and Well Written Essays - 500 words

The Milky Way Galaxy - Essay ExampleThe Milky Way we see right away is known as a spiral beetleweed due to its shape, a flattened disc that bulges in the center. Arms of concentrated matter swirl let out from the bulge giving it its spiral appearance. Between the arms of matter are dust lanes, which gives the area a vacant look. The diameter of the disc is approximately 100,000 blowzy years across while the thickness of the disc is only 2,000 light years. The center bulge reaches out to a thickness of about 6,000 light years. The coltsfoot itself has a well-ordered motion revolving around the galactic center and is surrounded by the galactic halo. The halo is made up of faint older stars that waver randomly, engulfing the galaxy.The galaxys spiral arms are formed as the galaxy spins and density waves move through the collection of stars and gas. The waves compress different parts of the disc at different times and give it the characteristic spiral shape. These spiral arms rotat e around the center bulge where most of the matter is contained, and as the galaxy spins it maintains its shape through the rotational movement and gravity. The stars and globular clusters in the halo that surround the main portion of the galaxy give it an overall spherical shape.The stripping of the Milky Way is a relatively rec