Dawn is the first mission to orbit a main belt asteroid and the first scientific mission to use ion propulsion. Major objectives of this mission include mapping

Based on extensive primary sources, many never previously translated into English, this is the definitive account of the origins of Ceres as it went from being

The Neptune File tells the story of the gifted mathematician John Couch Adams and the discovery of the planet Neptune in 1846. Combining scientific triumph with

A definitive reference on the Dawn mission and its results, covering the formation and evolution of the asteroid belt.