Since the first observation of a Bose-Einstein condensate (BEC) made from strongly magnetic atoms, these systems have proven to be a rich source of new and fascinating phenomena arising from
the long-range and anisotropic dipole-dipole interaction. Here, I will present the latest results from our erbium and dysprosium dipolar quantum gas labs in Innsbruck, with a particular focus on the rotational properties of these systems in different phases. I report on the first experimental observation of quantized vortices in a strongly magnetic BEC of dysprosium atoms by stirring the gas through rotating the magnetic field. These results open the door for studying more complex phases of matter under rotation, such as dipolar supersolids states, that simultaneously manifest a crystalline order and superfluid properties. Finally, I theoretically investigate “glitches” in dipolar supersolids, which are instantaneous jumps of the rotation frequency occurring due to dispelling superfluid vortices being absorbed by a rigid crystalline component, as observed in neutron stars.