Nasa Pluto Spacecraft Reveals Big Ice Volcanoes On Dwarf Planet
Most of Pluto is extremely heavily cratered and indicates a surface age of 3.9 billion years old. Sputnik Planitia is an exception, with no identified effect craters marring the surface, indicating a pretty young age, and possibly, presently active processes. Mid-latitude areas with low crater abundances had been not imaged at a resolution enough to see craters, and the projection...
