Stars are big balls of hot gases. The hot gases give off light. This light is what we see from Earth. Stars may appear to twinkle.Some stars seem brighter than others. They may look brighter because they are bigger or hotter. They may also look brighter because they are closer to Earth.You may also see planets in the night sky. Planets may look larger and brighter than stars, and they do not twinkle. They do not give off their own light, as stars do.Some people use telescopes to look at the night sky. A telescope makes things look closer and large