Weather On A Brown Dwarf Star. Postcard

This artist's concept shows what the weather might look like on cool star-like bodies known as brown dwarfs. These giant balls of gas start out life like stars, but lack the mass to sustain nuclear fusion at their cores, and instead, fade and cool with time. New research from Spitzer Space Telescope suggests that most brown dwarfs are racked with colossal storms akin to Jupiter's famous Great Red Spot. These storms may be marked by fierce winds, and possibly lightning. The turbulent clouds might also rain down molten iron, hot sand or salts, materials thought to make up the cloud layers of brown dwarfs.