At this time next year, NASA's probe New Horizons will fly by the planet-like object Pluto and discover more about the icy ball. The last time scientists reached for a major solar system body was ...

New research suggests Pluto may have had a “kiss” with its largest moon billions of years ago in a harmless collision. The report, published in “Nature Geoscience,” describes how the minuscule dwarf ...

Discover the incredible story of NASA's New Horizons mission, from its 2006 launch aboard an Atlas V rocket to its historic ...

When the International Astronomical Union announced in 2006 that Pluto was being demoted from its status as the Sun’s ninth planet, many astronomers and non-experts alike were shocked. Pluto remains ...

NASA's administrator wants to reclassify Pluto as a planet, reigniting a 20-year controversy over its status in our solar ...

A huge heart-shaped feature on the surface of Pluto has intrigued astronomers since NASA’s New Horizons spacecraft captured it in a 2015 image. Now, researchers think they have solved the mystery of ...

Pluto returns in this episode of SolarBalls, where its adventures seeking out the mysterious dwarf planets continue. Enjoy ...