SOLAR SYSTEM

Detailed explanation-1: -The Milky Way is a huge collection of stars, dust and gas. It’s called a spiral galaxy because if you could view it from the top or bottom, it would look like a spinning pinwheel. The Sun is located on one of the spiral arms, about 25, 000 light-years away from the center of the galaxy.

Detailed explanation-2: -The Milky Way is a large barred spiral galaxy, with a relatively small bar compared to most galaxies of a similar size. A central bar (or central bulge) is a circular to oval shaped structure of old stars which lies at the center of spiral galaxies.

Detailed explanation-3: -Some spiral galaxy examples are Pinwheel Galaxy, Andromeda Galaxy, Sunflower Galaxy, Triangulum Galaxy, and Whirlpool Galaxy. Spiral galaxies are a part of the Hubble sequence, and they consist of a flat disk, rotating with stars, gas, and dust.

Detailed explanation-4: -Galaxies are categorized into three main types, based on their shapes: spiral, elliptical and irregular. Almost 70 percent of those closest to the Milky Way are spirals. But in the early universe, spiral galaxies didn’t exist.

Detailed explanation-5: -Why is the Milky Way a spiral? This is due to its rotation, or rather, the rotation of matter inside the galactic disk around the center.