There’s a Planet Where It Rains Glass Sideways

HD 189733 b might be one of the most violent places in the galaxy. This gas giant exoplanet has winds howling at 8,700 km/h (5,400 mph)—seven times the speed of sound. Its atmosphere is thought to be full of silicate particles, meaning it may rain molten glass. And because of those extreme winds, the glass shards wouldn’t fall down—they’d fly sideways at hypersonic speeds.