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Stars are just like humans. They have life cycles. As stars progress through life, they have three characterstics that change. Name these three characteristics.
A nebula is where stars are born. What does a nebula consist of?
Below is a picture of the PIllars of Creation. What is significant about the pillars depicted?
Gravity is the driving force behind star formation. As gravity pulls together gas and dust, density increases. As density increases, so does temperature. Once the mass is hot enough, what nuclear process begins?