Elon Musk, under the username "Kekius Maximus," has joined William Shatner in advocating for Pluto's reclassification as a ...

In 2006, the International Astronomical Union stopped classifying Pluto as our solar system’s ninth planet and demoted its ...

The International Astronomical Union, which reclassified Pluto as a dwarf planet in 2006, is the arbiter of such ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...

Pluto’s status is not determined by the president. The International Astronomical Union, which reclassified Pluto as a dwarf planet in 2006, is the arbiter of such classifications. Andrea has ...

We all have a room in our minds where the past lives. Some call it memory, others call it baggage. It’s filled with faded ...

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

“Long Trail School staged the New England premiere of 'Pluto, the Wayward Planetoid,'” said Tripp Pettigrew, theater director ...