The new object is one of the most distant visible objects in our solar system. Astronomers have indeed discovered a potential new dwarf planet in the outer reaches of our solar system, far beyond ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Scientists with the Institute for Advanced Study’s School of Natural Sciences say they have found a possible dwarf planet that they have dubbed an "extreme cousin" of Pluto. They say that the ...

Top international astronomers voted Thursday to strip Pluto's planetary status that it has held since its discovery in 1930. The celestial object is now redefined as a "dwarf planet," leaving just ...

By Kenneth Chang Kenneth Chang has been reporting on dwarf planets and their definitions since Pluto was demoted into that category. A sizable world has been found in a part of the solar system ...

That makes it three times smaller than Pluto. But that is still big enough to be considered a dwarf planet, lead study author Sihao Cheng of New Jersey's Institute for Advanced Study told AFP.

“This project was really an adventure.” If confirmed, the newfound dwarf planet would be what Cheng calls an “extreme cousin” of Pluto. The findings were published on the preprint website ...

The five dwarf planets recognized by the International Astronomical Union are Pluto, Ceres, Eris, Haumea and Makemake—and these are pictured with 2017 OF201 in a telescope image. Dwarf planets ...

At roughly 435 miles wide, 2017 OF201 could qualify as a dwarf planet, the same designation Pluto has had since its demotion from ninth planet in 2006. "Even though advances in telescopes have ...

A potential new dwarf planet has been discovered in the outer ... sun — is 44.5 times that of the Earth's orbit, similar to Pluto's orbit." We're learning more and more about the outer solar ...

Astronomers have discovered a new dwarf planet, named 2017 OF201, far beyond Pluto’s orbit. It takes 25,000 years to orbit the sun—much longer than Pluto’s 248 years.