Scientists have identified an object about 700km wide inhabiting the frigid outer reaches of our solar system that might ...

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 ...

OF201 spends only 1% of its orbital time close enough to us to be detectable. The presence of this single object suggests ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

OF201 is incredibly lightweight on a cosmic scale. Scientists estimate its mass is about 20,000 times less than Earth’s and ...

Astronomers announced the discovery of a new dwarf planet, provisionally named 2017 OF201, located in the remote outskirts of ...

Researchers discovered a new trans-Neptunian object, 2017 OF201, potentially a dwarf planet, in the outer solar system.

The discovery challenges the Planet Nine hypothesis, which suggests a massive, unseen planet is influencing the orbits of distant TNOs. While most extreme TNOs show a clustered pattern that supports ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, ...

While astronomers continue to search for the mysterious "ninth planet”, a possible giant hidden in the extremities of the ...

The celestial body, designated as 2017 OF201, ranks among the largest distant objects ever detected, providing fresh insights into the Kuiper Belt and the remote regions of our planetary system. The ...

A new dwarf planet, temporarily named 2017 OF201, has been located in a distant orbit far beyond Pluto. The object, which may be a distant cousin of Pluto, has an orbital path so vast that it ...