HD 189733b: The Blue Planet Where Glass Rains Sideways

HD 189733b is a giant blue exoplanet located about 63 light-years from Earth. It orbits extremely close to its star, causing temperatures in its atmosphere to rise above 1,000°C. On this strange world, silicate particles may form molten glass droplets. With winds reaching thousands of kilometers per hour, the glass rain could move sideways through the atmosphere instead of falling straight down like rain on Earth. Its deep blue color does not come from oceans, but from silicate particles in the planet’s scorching atmosphere. #HD189733bGlassRainExoplanetSpaceFactsAstronomyNASAAlienPlanetUniverseScienceFacts