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SPACE
Mercury Was Once A Roaring World of Melting-Hot Fire and Lava!
Photo: Am / Unsplash
Our solar system's smallest planet had a surprisingly wild past, bubbling with super-heated volcanoes that erupted from deep inside its belly. This means Mercury was once much hotter and more active than we ever imagined! Can you picture a tiny, rocky planet glowing like a giant fireball in space?
Original source
ScienceDaily
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