... Tonight's Sky . ... Sky Events . ... Astronomers find extreme weather on an alien world . Infrared data indicate a gigantic storm could be raging on a nearby brown dwarf. ... A University of Toronto-led team of astronomers has observed extreme brightness changes on a nearby brown dwarf that may indicate a storm grander than any seen yet on a planet. Because old brown dwarfs and giant planets have similar atmospheres, this finding could shed new light on weather phenomena of extrasolar planets. ...