“The New Horizons images and data surprised scientists by showing both Pluto and Charon to be complex bodies despite their small size and cold temperatures,” NASA said. Pluto may not be a full ...

Although previous images showed that something was happening on Pluto, with an average temperature of -240C, many people assumed it was a cold and relatively dead world. That was until NASA's 'New ...

“Pluto’s core is so cold that the rocks remained very hard and did not melt despite the heat of the impact,” said Ballantyne. “Thanks to the angle of impact and the low velocity, the core ...