The life cycle of stars: from birth to death
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Have you ever wondered how stars are born and what happens to them during their lifetime? In this one-minute video, learn about the life cycle of stars, from birth to death. Stars start out as clouds of gas and dust called nebulae, eventually forming a protostar that becomes a star in its own right. Most stars spend their lives as a main sequence star, fusing hydrogen into helium. After running out of hydrogen, stars evolve into red giants, shedding their outer layers and forming planetary nebulae. Eventually, the star's core collapses in on itself, forming a white dwarf.
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