Uranus and Neptune have been called the “ice giants” for decades. But in new research, that nickname might be more a misnomer than anything.

We actually know very little about what's going on inside Uranus and Neptune, causing researchers to propose that these ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space ...

An artist's rendering of two comets that will make a near-earth passes later this month. The first, known as SWAN, will pass ...

The outline of the cosmic simian's mouth and face are sculpted from a colossal cloud of molecular dust located some 500 light ...