Understanding the origin of planetary systems requires our comprehension of the materials from which the planets in our solar system formed. Exploring planetary formation draws from and contributes to a variety of scientific disciplines ranging from astrophysics to geology. One of the methods for understanding the composition and the geological history of the Earth is to study rocks. Much of the earliest history of our planet, however, has been recycled, leaving little evidence of its infancy To gain insight into the accretion and differentiation history of our planet and others, it is necessary to investigate rocks not formed on Earth.