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 ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

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 ...

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

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 ...

We are less than two weeks away from the 95th anniversary of the discovery of Pluto ... does too," Grundy said. "Pluto's got everything I like in a planet, in spades. It's got a satellite system.

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 ...

Pluto was discovered 95 years ago on Feb. 18 ... could work depending on light pollution. The planet appears as a small, star-like point. Pluto is so distant, you need a telescope to see it.