Everything Else . After that, the body would be freeze-dried, scientists theorize. The water in the body would freeze and eventually dissipate into space, leaving behind the other body constituents.
Ice can evaporate without going through the liquid phase, a process called sublimation.
It happens with refrigerator ice all the time. Because there is no oxygen, there would be no decomposition of the body, and there is little evidence that there would be degradation by microbes in space. The process would be similar but much slower if the person died in a spacesuit. New questions are answered on the site every Tuesday and Thursday.