Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

There are currently no other explanations for the effects that we see, nor for the myriad other P9-induced effects we see on ...

Space Could we tweak the solar system to make Pluto a planet again? Pluto officially lost its planethood in 2006, and this episode of Dead Planets Society is all about bringing it back by making ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual orbit that ...

As Voyager 1 pushes beyond Pluto, it reveals a shocking truth,the solar system is far vaster and more mysterious than we ever ...

Pluto is the only planet (OK, now former planet) in our solar system discovered by an American. Astronomer Clyde Tombaugh spotted the dot in 1930 from Lowell Observatory in Flagstaff, Arizona.

Since it’s so far from the sun an average of about 3.7 billion miles, the farthest planet in the solar system and because it’s the smallest, scientists thought Pluto’s gravity would not be ...