Comets Bringing Water (2011)
A view of the early Earth and Moon system, still enduring the seemingly endless
bombardment of planetesimals and comets that rained down for the first several
hundred million years of the pair's existence. It is thought that impacts by icy
comets helped furnish the Earth with water for its oceans. (Note: image is copyright
Kingfisher. Do not ask me to license this image, as I cannot.)
