Turbulence ... in space!
Turbulence is a notoriously hard field to study, both experimentally and theoretically. It seems that it has been observed for the first time in space:
Turbulence can be studied on Earth easily by mapping such things as the density or velocity of fluids in a tank. In space, however, where we expect turbulence to occur in such settings as solar wind, interstellar space, and the accretion disks around black holes, it's not so easy to measure fluids in time and space. Now, a suite of four plasma-watching satellites, referred to as Cluster, has provided the first definitive study of turbulence in space.
You can read more here. The original article on PRL can be read here.