Are interstellar materials within our own system that can add to our understanding of other systems, and if so, is there information from those materials that can assist in developing interstellar missions? The best-studied type of interstellar material available is presolar grains within meteorites, grains that survived the formation of the Solar System intact. Unfortunately, they typically formed as condensates in outflows of dying stars, so they do not reflect current conditions. In recent decades, interstellar dust grains have been discovered to be streaming through the Solar System but they are so small ( © 2020 British Interplanetary Society. All rights reserved.