The universe contains all of time and space, including galaxies, stars, planets, and other bodies in space. Galaxies are systems of planets and stars that are bound together by gravity. Our galaxy is called the Milky Way and contains over 100 billion stars. There are also over 100 billion galaxies in our universe. Think about the universe's parts and how big the universe really is. Which statements are true about galaxies, stars, and the universe?

A. The Sun is a star in the Milky Way Galaxy.

B. Galaxies are made of gas, dust, and billions of stars.

C. One light year is equal to the distance light travels in one year.

D. Stars come in different shapes, including elliptical, spiral, and irregular.

E. Spiral galaxies only contain spiral stars and elliptical galaxies only contain elliptical stars.

F. The Milky Way is spiral-shaped.

G. The Sun is located in the exact center of the Milky Way Galaxy.