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Researcher Drops Block of Ice Into 450-Ft-Deep Hole in Antarctica — Hears an Eerie Sound From Below

Usually, when an ice cube crashes, collides, and grinds against another ice cube, it produces sounds like a thud, a clang, or a clunk. But when John Andrew Higgins (@blueicehiggins) dropped down a ...
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Scientists lowered a camera 300 feet into Antarctic ice—what it revealed left viewers in awe

As the camera went deeper, the color of the ice transitioned from blue to a diamond-like white.