With a diameter of 1,440 miles, Pluto is farthest from the sun. While major planets make roughly circular orbits, Pluto ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

Aliens may have been closer to Earth than first thought. New research from NASA reveals that Ceres, the dwarf planet in the ...

A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her ...

New research paints a picture of Ceres hosting a deep, long-lived energy source that may have maintained habitable conditions ...

A dwarf planet in our own solar system may once have been habitable, new Nasa research has revealed. Ceres, which lies ...

NASA's Dr David Grinspoon claims there could be life on the dwarf planet Ceres as astrobiologists are constantly 'surprised' ...

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

A NASA scientist has suggested there may be life in the seas of a dwarf planet saying astrobiologists are constantly ...