ASTROPHYSICAL DUST
I consider the ‘life-cycle’ of astrophysical dust, from its formation and journey through the interstellar medium of the Galaxy, to its destruction. Likely structures for dust grains are examined, and the processes which control the composition of dust grains. I discuss the importance of astrophysical grain surfaces as sites of interstellar chemistry, and the effects of dust on the radiation which we observe from the Universe.