 Ceres appears to be differentiated into a rocky core and icy mantle , and may have a remnant internal ocean of liquid water under the layer of ice . The surface is probably a mixture of water ice and various hydrated minerals such as carbonates and clay . In January 2014 , emissions of water vapor were detected from several regions of Ceres . This was unexpected , because large bodies in the asteroid belt do not typically emit vapor , a hallmark of comets . 
 Ceres <a href='uninflect' title='1'><mark>appears</mark></a> to be differentiated into a rocky core and icy mantle , and may have a remnant internal ocean of liquid water under the layer of ice . The surface <a href='drop_aux' title='2'><mark>is</mark></a>probably a mixture of water ice and various hydrated minerals such as carbonates and clay . In January 2014 , emissions of water vapor <a href='uninflect' title='3'><mark>were</mark></a> detected from several regions of Ceres . This was unexpected , because large bodies in the asteroid belt do not typically emit <a href='negative_concord' title='4'><mark>vapor</mark></a> , a hallmark of comets . 
Ceres appear to be differentiated into a rocky core and icy mantle , and may have a remnant internal ocean of liquid water under da layer of ice . The surface def a mixture of water ice and various hydrated minerals such as carbonates and clay . In January 2014 , emissions of water vapor was detected from several regions of Ceres . dis was unexpected , because large bodies in the asteroid belt do not typically emit no vapor , a hallmark of comets .