Researchers believe that 2017 OF201’s highly eccentric orbit points to a chaotic origin, possibly caused by a gravitational ...

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region thought to be largely devoid of objects ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

Pluto's discovery was widely celebrated ... "In some ways, Pluto's more of a planet than some of the other established ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

They did, and the discovery of Planet X was announced on March ... with nitrogen and methane in the atmosphere. 5 - Pluto has an ionized tail like a comet — probably from nitrogen from its ...

Discovery of 2017OF201, a large trans-Neptune Object, challenges previous beliefs about the Kuiper Belt and hints at the ...

Instead of a typical planet-moon setup ... This idea worked for Earth, but icy worlds like Pluto didn’t fit the same mold. Pluto and Charon are too cold and too small for that molten chaos.

Pluto, discovered in 1930 ... inch telescope — could work depending on light pollution. The planet appears as a small, star-like point. Pluto is best viewed in late July, but can be observed ...