The Life Cycle of a Star. Nebula. Giant clouds of gas and dust The birthplace of stars!. Eagle Nebula: 9.5 Light Years Tall!. http://hubblesite.org/gallery/tours/tour-m16/. Creation of a Star.
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Cool Fact: Hydrogen in its core is converted into helium– this creates massive amounts of heat and light energy (this is called nuclear fusion)
Hydrogen runs out. The outer layers of the star cool and expand outward
The core of the Red Giant collapses and becomes a White Dwarf. The outer layers of the star drift away.
When the white dwarf runs out of energy, it eventually cools to become a black dwarf
Hydrogen runs out. The outer layers of the star cool and expand outward.
They continue to burn for a time and expand to an even larger volume.