Sentences with phrase «fresh icy surfaces»

Those exocomets also produce a lot more gas than typical comets do, a peculiarity that the researchers say could indicate that they have fresh icy surfaces prolifically evaporating.

Not exact matches

Its icy surface was as white and bright as fresh snow, and whereas the other airless moons were heavily pocked with craters, Enceladus was mantled in places with extensive plains of smooth, uncratered terrain, a clear sign of past internally driven geologic activity.

Like a cosmic lava lamp, a large section of Pluto's icy surface is renewed by a process called convection that replace older ices with fresher material.