272 Quotes About Planets



  • Author Craig Childs
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    This much scientists agree on: Five times in the history of the earth, most life has winked out. Five times, one species after the next disappeared, the chain collapsed, grazers died as the plants they depended on were lost, and predators disappeared shortly after, life on earth reaching as close to zero as you'd ever care to get.

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  • Author Michelle Cuevas
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    Change is the nature of nature,'" she read. "'For example, stars expand as they grow older. They grow from a star, to a red super-giant, to a supernova. When a massive star explodes at the end of its life, the explosion dispenses different elements-helium, carbon, oxygen, iron, nickel-across the universe, scattering starduest. That stardust now makes up the planets, including ours.

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