ANN ARBOR—As anyone with a smattering of geological knowledge knows, Earth’s crust is made up of plates that creep over the planet’s surface at a rate of several inches per year. But why do they move ...
Earth’s mantle, a solid, superheated, churning mass that makes up 84 percent of our planet, is a beautiful, enigmatic place that’s responsible for keeping our world geologically alive. Thanks to this ...
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