Spiral Galaxy

A spiral galaxy is a type of galaxy characterized by its swirling structure, which resembles a spiral shape. It consists of a central bulge made of older stars and surrounded by flat, rotating disks of younger stars, gas, and dust. The arms of the spiral, where star formation is most active, extend outward, creating a beautiful and dynamic appearance. The Milky Way, our home galaxy, is a classic example of a spiral galaxy. These galaxies contain billions of stars and can vary in size and brightness, playing a significant role in the universe's structure and evolution.