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Olympus Mons, the tallest mountain in our Solar System, towers 21,000 meters above the surface of Mars,nearly two and a half times the height of Mount Everest. On Earth, you would need a spacesuit to survive

Their recipe includes boron that may have ridden to great depths aboard a sinking tectonic plate A blue diamond gets its color from the element boron. Tiny bits of minerals inside the gem suggest that

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