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 ...

After marking the 30th anniversary of the discovery of the first exoplanet around a sun-like star, we now look forward to what the next 30 years might offer.

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