Glass Rain and Supersonic Winds on HD 189733b
TL;DR Summary
Astronomers using Hubble reveal that exoplanet HD 189733b—a heat‑stricken, blue world about 64 light‑years away—experiences winds up to 5,400 mph that can sling glass‑like silicate droplets across the atmosphere, creating lethal sideways rain with dramatic day‑night temperature contrasts.
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