The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar ...

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 new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

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

On May 21, the International Astronomical Union's Minor Planet Center announced the discovery of 2017 OF201, which, because ...

Astronomers have found a new minor planet beyond Pluto. This object, named 2017 OF201, is quite large. It orbits far from the ...

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

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic ...

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 Minor Planet Center in Cambridge, Mass., officially registered the new space rock Jan. 2, saying it was spotted hurling through the final frontier roughly 150,000 miles from Earth, according ...

Elon Musk’s sense of humor is out of this world. Seven years after the SpaceX CEO launched a Tesla Roadster into orbit, astronomers from the Minor Planet Center at the Harvard-Smithsonian Center ...