Uranus and Neptune have a lot in common, climate-wise, even though Uranus is tipped on its side with the pole facing the sun during winter. They are both home to extreme winds blowing at speeds of over 1000 km/hour, they have hurricane-like storms as big as our whole planet and immense weather systems can last for years.
But what about their origins? Do the atmospheric patterns arise from deep down in the planet, or are they confined to shallower processes nearer the surface? Understanding the atmospheric circulation is not simple for a planet without a solid surface, where Earth-style boundaries between solid, liquid and gas layers do not exist.