Imagine a Slushee composed of ammonia and water encased in a hard shell of water ice. Now picture these ice-encrusted ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform ...

In the great tug-of-war between the Sun and its planets, Jupiter, Saturn, and Uranus are much more susceptible to solar ...

Doesn’t Jupiter have the most moons? What are they going to call all these moons? Are there more out there? And what exactly makes something a moon, anyway? These new discoveries cement Saturn ...

On April 2, facing almost due west at dusk you'll see a slender crescent moon sitting about 5 degrees to the right of Jupiter. Saturn is now a morning object, emerging from the glare of the rising ...