Look up at the night sky. If it is clear, you’ll see stars. You might see just one or two. Or you might see stars filling the sky. Let’s learn about them.
Stars are bright balls of hot gas. They burn many millions of miles away from Earth. Did you know that the sun is a star?
A nebula is a cloud of dust and gases. Some nebulas are exploded stars. Some are stars that are still forming.
Stars have different temperatures . This makes them different colors. Blue stars are the hottest. Red stars are cooler.
So Many Stars
Our planet is in the Milky Way galaxy. A galaxy can be made up of billions of stars. There are billions of galaxies in the universe . Imagine how many stars there must be. There are too many to count!
Did You Know?
This is an observatory. It houses a telescope. A telescope makes faraway objects look closer. Astronomers use it to see objects in space.