The American space agency spacecraft New Horizons' journey to the dwarf planet Pluto has been the talk of interest as the craft was successful in gathering some rare details about the planet.

The data sent back home by the craft stunned scientist community across the world. Scientists now admit that whatever mindset they had about Pluto was completely wrong.

According to The Independent, NASA's New Horizons for the last time looked at Pluto from a distance of nearly six million kilometres away. Scientists said they were surprised seeing how active the dwarf planet was in contrast to what the science theories had suggested years before.

Pluto since long has been said to be an inert ball of ice and rock, but recent photographs of the dwarf planet captured by the New Horizons shows something completely different.

The images showed that there were vast plains, 3,000-metre Mountains, possible volcanoes, rift valleys and other features that suggest it has a molten core and shifting tectonic plates.

Scientists stated that the absence of impact craters from meteorites on its surface indicates that the planet is geologically young and could be a million years old and possibly geologically active as well.

New Horizons' chief investigator Alan Stern said, "Pluto and Charon have been geologically active for billions of years, but we don't know what the energy is that is driving it. It's a puzzle. They have surface areas that have no craters. There must be craters unless they are young".

He said they even saw faultlines, scarps and other tectonic features such as rift valleys on both Pluto and Charon, which is unmistakable.