As well as that, April on Pluto is a month-long celebration of Earth Day, with the streamer releasing a bunch of breathtaking ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

He called this hypothetical world "Planet X." "In some ways, Pluto's more of a planet than some of the other established ...

A New Horizons image of Pluto and its moon Charon revealed more surprises about the dwarf planet and its orbiting moon. Click on the hand to see why Pluto and its moon have shaken things up.

An curved arrow pointing right. NASA's New Horizons spacecraft took us to Pluto for the first time in July 2015. Scientists are astonished by the incredible features they've observed on the dwarf ...

For more than 70 years, Pluto was classed as the ninth planet but that changed in 2006, when the International Astronomical Union downgraded its status to that of a dwarf planet. Last September ...