When you buy through links on our articles, Future and its syndication partners may earn a commission. A new discovery may mean Planet Nine is cancelled. . | Credit: nagualdesign; Tom Ruen, background ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...

“The object’s aphelion the farthest point on the orbit from the Sun is more than 1,600 times that of the Earth’s orbit,” said Sihao Cheng, Institute for Advanced Study lead researcher, as the ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

A team of scientists at the Institute for Advanced Study School of Natural Sciences in Princeton, New Jersey, might have found a new dwarf planet, potentially leading to more evidence of a theoretical ...

Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists. Most of the stars across the Milky Way are small red dwarfs ...

The five dwarf planets recognized by the International Astronomical Union are Pluto, Ceres, Eris, Haumea and Makemake—and these are pictured with 2017 OF201 in a telescope image. Dwarf planets: NASA / ...

New research may shine a light on part of outer space's great mysteries: the Oort Cloud. The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of ...

"It's very rare to discover an object both large and with an exotic orbit." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A potential new dwarf ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers ...