A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

The object’s aphelion—the farthest point on the orbit from the sun—is more than 1,600 times that of Earth’s orbit,” Institute for Advanced Study’s Sihao Cheng mentioned in a recent press release. As ...

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

The new object, named 2017 OF201, was discovered by researchers in an astronomical image database while searching for trans-Neptunian objects (TNOs) and possible new planets in the outer solar system.

WASHINGTON >> Scientists have identified an object about 435 miles wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

It probably qualifies as a dwarf planet, the same classification as Pluto. Temporarily named 2017 OF201, it takes more than 24,000 years to travel around the sun just once along a highly ...

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.

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

The Kuiper Belt is populated by numerous icy bodies. Given the name 2017 OF201, the object falls into a category called trans-Neptunian objects that orbit the sun at a distance beyond that of Neptune.