Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Batygin and Brown argued that something with a large gravitational pull must be affecting their orbit, and proposed Planet Nine as a potential explanation. This would be comparable to what happens ...

Problems for Planet Nine However, 2017 OF 201 's existence contradicts the Planet Nine hypothesis, based on our best guess as to Planet Nine's orbit. Planet Nine is a concept that was introduced in ...

In fact, the team even conducted simulations of 2017 OF 201 's orbit in the Solar System, both with and without a Planet Nine. They found that, without Planet Nine, 2017 OF 201 can have a stable ...

A new study suggests the existence of Planet Y. This hidden planet may be affecting the Kuiper Belt. The gravity of Planet Y ...

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.

Planets Potential discovery of new dwarf planet adds wrinkle to Planet Nine theory 017OF201 is a trans-Neptune object with a unique orbit located past the Kuiper Belt ...

For years, scientists have puzzled over how these “wide-orbit” planets, including the elusive Planet Nine theorized in our own solar system, could have formed.

Astronomers have found 2023 KQ14, nicknamed Ammonite, a rare sednoid with a unique orbit that challenges the Planet Nine hypothesis.

Simulations Of Early Solar Systems Find Up To 40 Percent Chance That Planet Nine Exists Wide-orbit planets are fairly common according to the study, and there's a good chance we have one of our own.

This lack of a roughly circular orbit around the Sun suggested either an impact early in its lifetime that put it on this path, or gravitational influence from Planet Nine.