An icy disk of smaller objects might be a better explanation.
It’s more than 100 times farther away than Earth is from the sun.
An elusive planet ten times more massive than Earth may be lurking in the outer fringes of the solar system.
A ninth planet 10 times bigger than Earth might be lurking far away within the solar system.
Research narrowed down Planet Nine’s orbit and confirmed there indeed seems to be a massive planet in the far reaches of our Solar System, “but not just anywhere”.