Water on Dwarf Planet Ceres May Erupt From Ice Volcanoes

Astronomers have discovered direct evidence of water on the dwarf planet Ceres in the form of vapor plumes erupting into space, possibly from volcano-like ice geysers on its surface.

Using European Space Agency's Herschel Space Observatory, scientists detected water vapor escaping from two regions on Ceres, a dwarf planet that is also the largest asteroid in the solar system. The water is likely erupting from icy volcanoes or sublimation of ice into clouds of vapor.

"This is the first clear-cut detection of water on Ceres and in the asteroid belt in general," said Michael Kuppers of the European Space Agency, Villanueva de la Canada, Spain, leader of the study detailed Jan. 22 in the journal Nature. Read more...