Neptune is the farthest planet from the sun and was the first to be predicted before it was discovered.
Saturn, sixth planet from the sun, is the second largest planet in our solar system.
Scientists have found "compelling evidence" that Saturn's "Death Star" moon is hiding an ocean just beneath its surface, furthering the search for possible life in our solar system.
Several factors make Earth unique given what scientists know about the thousands of planets discovered to date.
Just because a spacecraft is sent to study the moon doesn't mean it can't do a little extra skywatching now and then.
The crescent moon will swing by Saturn on Wednesday before making a close approach to Jupiter in Thursday's evening sky.
Between Saturday and Thursday evenings (Oct. 9 to Oct. 14), the moon will visit not one but three bright planets: Venus, Saturn and Jupiter.
These planets are mostly made of gas, but a spaceship would have a rough time trying to get through a giant planet like Jupiter or Saturn.
Scientists used Saturn's famous rings as a seismograph to study processes in the planet's interior. The researchers found its core is like a soup consisting of rocks, ices and metallic fluids.
Starting Monday (Aug. 2), you can find Saturn shining in the sky as part of a celestial phenomenon called opposition.
The methane wafting from Enceladus may be a sign that life teems in the Saturn moon's subsurface sea, a new study reports.
Some of the most fascinating worlds in our cosmic neighborhood are not planets, but the moons that orbit around them.
A concept of a sample-return mission to Saturn's moon Titan envisions using local lakes of hydrocarbons as a source of fuel to power the trip home.
Data from one of Cassini's last flybys of Titan probed the depths of Kraken Mare to better understand the moon's alien chemistry.