A galaxy is like a big group of stars, planets, and space stuff all together. It's like a huge family in the sky!
A galaxy is a huge collection of stars, planets, and dust in space. Our Earth is part of a galaxy called the Milky Way.
A galaxy is a giant system in space that has millions or even billions of stars, along with planets and other things. The Milky Way is the galaxy we live in.
A galaxy is a massive system made up of stars, planets, gas, and dust, all held together by gravity. There are billions of galaxies in the universe, and our galaxy is called the Milky Way.