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

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii Telescope. Its orbit and size ...

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

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

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 ...

The James Webb Space Telescope (JWST), operated by NASA, has uncovered intriguing new details about Charon—Pluto’s largest moon—including the presence of previously undetected surface chemicals. This ...

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 ...

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 ...

Ever since the International Astronomical Union recognized Haumea and Makemake as dwarf planets in 2008, University of Maine ...