Giant, ridge-like structures of methane ice, known as "bladed terrain," may be much more abundant along Pluto's equator than ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Pluto’s mysterious far side may conceal towering ice formations, according to research offering clues about the dwarf ...

Pluto Like Planet With an Extraordinary Orbit Classified as an extreme trans-Neptunian object (TNO), 2017 OF201 is believed to be around 700 kilometers (435 miles) in diameter—about half the ...

Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

Pluto was demoted as a planet because Astronomers anticipated finding about 10,000 Pluto-like objects. Astronomer Mike Brown considers 130 trans-Neptunian bodies to be likely dwarf planets, ranked ...

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

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

The frozen surface of the dwarf planet Eris looks a lot like that of its smaller neighbor Pluto, new research has found. Both frozen worlds are covered predominantly with nitrogen ice, a research ...

According to the IAU, a dwarf planet is as related to a planet as an asteroid is -- not at all. This hard definition has been drawing criticism since the IAU demoted Pluto in a 9-8 vote in 2006.

New Horizons has been carrying science instruments on its 3 billion mile, nine-and-a-half year journey to Pluto, and an ounce of the astronomer's ashes have also been along for the ride.