Pluto hasn't been a planet for almost 20 years. In the early 2000s, scientists discovered several objects of a similar size to Pluto. So, during the summer of 2006, members of the International ...

For decades, Pluto remained one of the most mysterious objects in our solar system, until July 14, 2015, when NASA's New Horizons spacecraft became the first mission to visit it up close, capturing ...

It was two years ago, on July 14th, 2015, that NASA’s New Horizons spacecraft flew by Pluto — marking the first time we had ever explored this mysterious small world. The probe whizzed by within 7,750 ...

Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...

Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of darkness; after all, Pluto is the Roman equivalent of the Greek God Hades.

A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large fraction of the size ...

If you know your mythology, you’re already familiar with Pluto’s spooktacular namesake; the lovable dwarf planet is named after the Roman god of the underworld, also known as Hades in Greek mythology.