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Pluto's heart is a glacier, not just a shape

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When the New Horizons space probe finally flew by the distant, wildly controversial dwarf planet Pluto, it beamed back an incredibly heartwarming image. The desolate, freezing surface heavily features a shockingly distinct, thousand-mile-wide pale heart shape, which scientists violently discovered is actually an incredibly deep, shifting glacier made of purely frozen nitrogen.

Pluto's heart is a glacier, not just a shape
STACKY / Science
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