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.

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest photos from this distant dwarf planet have provided us with ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

It’s the solar system’s only binary planet system, even though Charon isn’t technically a planet, he said. Pluto, too, is no longer considered a full planet.

Based on this definition, there could be nearly 110 planets in the solar system, including both Jupiter’s and Earth’s moons.

What we know about the search for ‘Planet Nine’ in our solar system - The idea of a massive undiscovered planet has been around since before the discovery of Pluto in the 1930s ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new dwarf planet. It's called 2017 OF 201, a rock that appears to be some 700 ...

Pluto isn’t a planet — but it gives us clues for how the solar system formed By Regina G. Barber, Rebecca Ramirez Published June 22, 2024 at 5:00 AM EDT Listen • 14:22 NASA/JHUAPL/SwRI ...