I've been reading about what happens to water when exposed to vacuum, but can't seem to find a definitive answer concerning a few details in the step-by-step process. I read that water will quickly boil in the vacuum of space due to very low pressure, and then freeze. But roughly how long does it take to freeze? Say a glob of temperate water with the volume of about a shot glass is suddenly exposed to the vacuum of space. Would the whole thing quickly boil away into gas, and then the vapor desublimates? Or would any portion of the water transform directly from liquid to solid? For desublimation in these circumstances, and if at all roughly possible to calculate, how big/thick would the resulting ice crystal cloud be? How long would this entire process take? A moment? Or full seconds or minutes? Would the cloud look like snow? Would you be able to mush it into an ice/snow ball?