Herschel Discovers Water Vapor Spewing from Ceres

With the Dawn spacecraft now heading towards the dwarf planet/asteroid Ceres, the mission has suddenly gotten even more intriguing. The Herschel space observatory has discovered water vapor around Ceres, and the vapor could be emanating from water plumes — much like those that are on Saturn's moon Enceladus - or it could be from cryovolcanism […]