Direct Evidence of Water found on Planet Ceres

[davos]

Pretty cool:

 

 

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 Küppers of the European Space Agency, Villanueva de la Cañada, Spain, leader of the study detailed today (Jan. 22) in the journal Nature.

The research has implications for how Ceres formed, and supports models that suggest the planets moved around a lot within the solar system during its formation, Küppers told SPACE.com. [See more photos of the dwarf planet Ceres]

Ceres, a dwarf planet or giant asteroid (depending on the definition used), is the largest object in the asteroid belt, orbiting at 2.8 astronomical units (the distance from Earth to the sun). The "snowline" is thought to partition the solar system into dry objects inside the asteroid belt, and icy objects such as comets further out. But the finding of water on Ceres suggests more mixing has occurred.

Scientists have suspected that there is a substantial amount of water on Ceres for about 30 years. A study found hints of water in the form of hydroxide, a product of water's dissociation, on Ceres in 1991, but the finding wasn't confirmed by later observations. Now, Küppers and his colleagues have confirmed the finding.

...more: 

http://news.yahoo.com/water-found-dwarf-planet-ceres-may-erupt-ice-182225337.html