Magnetorotational instability (MRI) is a phenomenon that occurs in differentially rotating magnetized fluids, where the presence of a magnetic field can lead to turbulence and angular momentum transport. This instability is crucial for understanding how energy and matter are transferred in astrophysical disks, such as those found around stars and black holes, thereby connecting the concept of magnetic forces and pressures to the dynamics within stellar and planetary environments.
congrats on reading the definition of magnetorotational instability. now let's actually learn it.