Deep space,the vast, silent expanse beyond our solar system, is filled with phenomena that defy logic, challenge physics, and ...

New research has revealed that mysterious ‘rogue planets’ could be assembling scaled-down planetary systems of their own.

Astronomers have long speculated about the existence of a mysterious planet lurking far beyond Neptune, a world several times ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...