Glacier ice is weird. It’s solid. Solid things aren’t supposed to flow. But glacier ice flows like a liquid, and it does that without melting! How is this possible?

Travel to Alaska’s Mendenhall Glacier with Joe Hanson of It’s Okay to Be Smart to learn about how a glacier, a dense ice form made from crushed and compacted snow, will slowly but perpetually move from the pressure of its own weight.

Related reading: Glaciology and Classification by size, shape, and behavior.

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