Spiral Arms

In the context of space and astronautical engineering, spiral arms refer to the long, curving arms of spiral galaxies that extend from the central bulge. These arms are composed of stars, gas, and dust, and are thought to be the result of density waves that propagate through the galactic disk. Spiral arms are important features of galaxies, as they are the sites of star formation and play a key role in the evolution of galactic structure. Understanding the dynamics of spiral arms is therefore an important area of research in astrophysics and space science.
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