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 ...

An icy object in perfect sync with Neptune reveals new details about planetary migration and unseen bodies far beyond the Kuiper Belt.

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

A team of astronomers from Taiwan has uncovered promising evidence suggesting the existence of Planet 9, a hypothesized ...

(Web Desk) - Astronomers have discovered a new world circling the outer edges of our solar system. Researchers using the Subaru Telescope, located in Hawaii, spotted a small, distant object called ...

Pluto is considered a Kuiper Belt Object, or KBO. The theoretical planet would be the ninth planet because in 2016 Pluto was downgraded to a dwarf planet after the object Eris was discovered.

The third edition of World Screen’s virtual FAST Festival takes place next week with headline speakers that include Pluto TV’s Olivier Jollet, Rakuten TV’s Marcos Milanez, Lightning ...

Japanese astronomers have discovered a potential dwarf planet, nicknamed Ammonite, orbiting the Sun far beyond Neptune, challenging the existence of the theorized Planet Nine.