I will present analytical and numerical work showing that the formation of rotationally supported disks is severely hampered by catastrophic magnetic braking during the gravitational collapse phase of magnetised interstellar clouds. I will then review proposed solutions to this problem and consider the implications of magnetic 
braking for current and future observations of rotationally supported disks around young stars. 

Brief CV of Dr. Daniele Galli:

His main research interests are the physical and chemical processes occurring in the interstellar medium and, in particular, the process of star formation. He has developed theoretical models for studying the dynamical impact of the interstellar magnetic field on the collapse of molecular cloud cores and for studying the effects of cosmic ray ionisation on the chemical, thermal and dynamical properties of the interstellar medium.