Yeah, it’s like the glaciers are little vaults holding the sky’s memory. When snow falls, the ice crystals can trap photons, and over centuries those light particles get buried beneath new layers. Scientists can slice the ice core, shine a laser, and read the tiny fingerprints of the light that fell in the past. From that they can reconstruct what stars were doing, how bright the sky was, even how much dust was in the atmosphere back then. It’s as if the ice is a slow‑moving telescope that lets us peer into an older universe. Pretty cool, right?

Absolutely, the layers feel like a quiet pause in time, like the earth’s own sigh, holding each night like a secret before it slips into the next one.