In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

Scientists are intrigued after spotting a highly unusual celestial object lurking at the very edge of our solar system.

As the rocky planets begin to settle into their orbits, Proto-Earth and Thea uncover the Sun’s true purpose for the Solar System: life. But while the planets argue, explore, and evolve, a hidden plan ...

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

Here’s 11 ‘facts’ you were probably taught at school which were either never true in the first place or are no longer correct ...

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

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

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

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

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

Astrobotic has completed a key round of testing for a lunar wireless charging system that incorporates technology from ...