image: Planets form in the presence of abundant interstellar water inherited as ices from the parent molecular cloud. This material relates to a paper that appeared in the 26 Sept., issue of Science, published by AAAS. The paper, by L.I. Cleeves at University of Michigan in Ann Arbor, MI, and colleagues was titled, "The ancient heritage of water ice in the solar system." view more
Credit: [Credit: NASA/JPL-Caltech/R. Hurt (SSC-Caltech)/ESO/J. Emerson/VISTA/Cambridge Astronomical Survey Unit]