increases the metallicities of the parent stars. There is cer- tainly evidence based on abundance analyses in our solar system that impacts from bodies in the asteroid belt or outer solar system have changed the surface abundances of the earth and other planets (e.g., Morbidelli et al. 2000...
Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with more than 400 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and