Earth's oceans are mysterious, largely unexplored places, but the enormous oceans of Neptune and Uranus have them beat.

Uranus has always been an intriguing planet for astronomers ... This is why so many believe a giant ring system or a lost satellite are the main cause for Uranus’ unique tilt.

Moons, rings, and the frosty secrets below In addition to the atmospheric discoveries, NASA has also noticed fascinating characteristics in Uranus’ and Neptune’s rings and moons. In the quest for ...

A comical planetary beauty contest is described, highlighting the unique traits of each planet: Mercury’s fiery nature, Venus ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.