  Dust in the interstellar medium (ISM) is critical to the absorption and
intensity of emission profiles used widely in astronomical observations, and
necessary for star and planet formation. Supernovae (SNe) both produce and
destroy ISM dust. In particular the destruction rate is difficult to assess.
Theory and prior simulations of dust processing by SNe in a uniform ISM predict
quite high rates of dust destruction, potentially higher than the supernova
dust production rate in some cases. Here we show simulations of
supernova-induced dust processing with realistic ISM dynamics including
magnetic field effects and demonstrate how ISM inhomogeneity and magnetic
fields inhibit dust destruction. Compared to the non-magnetic homogeneous case,
the dust mass destroyed within 1 Myr per SNe is reduced by more than a factor
of two, which can have a great impact on the ISM dust budget.
