We've spotted cloudy weather on a giant exoplanet, and its clouds may be made of gemstones

And its clouds may be made of gemstones Mark Garlick/University of Warwick HAT-P-7 b is about 1.4 times the size of Jupiter, and it may have cloudy skies. Humanity has gotten pretty good at tracking down planets in other solar systems. Between 2009 and 2013, the Kepler telescope discovered thousands of worlds orbiting distant suns. But…