The unusual orbit of a possible dwarf planet, known as 2017 OF201, makes it less likely that our solar system contains a ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural ...

A team of international astronomers led by Richard Teague, the Kerr-McGee Career Development Professor in the Department of ...

T he Solar System has just gotten a new official member. Currently, with the name of 2017 OF 201, this is a trans-Neptunian ...

The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. But astronomers may have found new evidence that points to a celestial body ...

"It's like trying to spot a fish by looking for ripples in a pond, rather than trying to see the fish itself." ...