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Circumpolar stars never rise or set

Circumpolar stars always reside above the horizon, and for that reason, never rise or set. All the stars at the Earthโs North and South Poles are circumpolar. Meanwhile, no star is circumpolar at the equator.
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Humans Almost Drove These 6 Animals To Extinction. But We Saved Them Instead. | The Huffington Post

These conservation success stories remind us that the mass extinction of the world’s species doesn’t have to be inevitable.












