The Earth and the Moon found out that there is a Ninth planet, and they decided to find it... Welcome to the SpaceBalls ...

No telescope has basked in the night sky quite like the enormous new Vera Rubin Observatory. Here's what it could reveal ...

In searching for the elusive Planet Nine, researchers instead turned up a different resident in our cosmic backyard.

Learn how a new discovery of a giant planet can help scientists refine their theories of how planets form.

New research shows there is at least a 40% chance of the existence of Planet Nine, but scientists are still looking for ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

Discovery of 2017OF201, a large trans-Neptune Object, challenges previous beliefs about the Kuiper Belt and hints at the ...

Wide-orbit planets are fairly common according to the study, and there's a good chance we have one of our own.

Researchers in the US have suggested there is a 40 percent chance a ninth planet could exist in our solar system. Planet Nine ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

Analysts have recently evaluated Planet Labs and provided 12-month price targets. The average target is $7.0, accompanied by ...