Our solar system is in the milky way and holds lots of planets, this picture showes what planets and stars and rocks are in the milky way.
The Sun: the sun is a star, it holds a lot of gases and fire. one person who looked at the sun through a telescope almost got blind and his cornia was damaged.
The Earth: the earth is our home planet and the one we know of the most. Earth is made up of lots of metors that hit each other at the same time creating a giant ball of rock and fire, which explains why the center of the earth is fire, we know lots about earth, but some is still unknown.
Mars: mars is one of the planets that is said to have life on it because they found water on it.
