  Recent observations indicate that >99% of the small bodies in the Solar
System reside in its outer reaches --- in the Kuiper Belt and Oort Cloud.
Kuiper Belt bodies are probably the best preserved representatives of the icy
planetesimals that dominated the bulk of the solid mass in the early Solar
System. They likely contain preserved materials inherited from the protosolar
cloud, held in cryogenic storage since the formation of the Solar System.
Despite their importance, they are relatively underrepresented in our
extraterrestrial sample collections by many orders of magnitude
($\sim$10$^{13}$ by mass) as compared with the asteroids, represented by
meteorites, which are composed of materials that have generally been strongly
altered by thermal and aqueous processes. We have only begun to scratch the
surface in understanding Kuiper Belt objects, but it is already clear that the
very limited samples of them that we have in our laboratories hold the promise
of dramatically expanding our understanding of the formation of the Solar
System. Stardust returned the first samples from a known small solar-system
body, the Jupiter-family comet 81P/Wild 2, and, in a separate collector, the
first solid samples from the local interstellar medium. The first decade of
Stardust research resulted in more than 142 peer-reviewed publications,
including 15 papers in Science. Analyses of these amazing samples continue to
yield unexpected discoveries and to raise new questions about the history of
the early Solar System. We identify 9 high-priority scientific objectives for
future Stardust analyses that address important unsolved problems in planetary
science.
