And, no, I don't mean the solar wind (although it's a fascinating topic).
Scientists at the University of Warwick have produced the first map of weather...on an exoplanet. Needless to say, this isn't an Earth-like planet - it's more like Jupiter (which, as we know, has spectacular, powerful and long-lived weather systems). They did it using spectroscopy to track atmospheric gasses - again, something that will probably only work with gas giants.
Still, pretty cool, right?