¹     Have you ever wondered what stars are? When we look up at the sky at night, we see lots and lots of stars. They are so far away from Earth that we see them as twinkling little dots of light. But stars are really suns, just like our sun that gives us heat and light in the daytime.
 
²     How can that be? The stars we see in the sky at night don't look anything like the sun! Our sun is big and bright. Our sun gives us heat and lots of light. Our sun can give us a sunburn! The reason our sun is so big and bright is because it is a lot closer to us than the other stars we see in the sky. All stars, including our sun, are huge balls of hot gases. Stars use the gases to make heat and light. Most stars are so far away that .....
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