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

Large hailstones made of ammonia may explain why the gas is missing from large pockets of Jupiter's atmosphere.

Planetary scientists at the University of California, Berkeley, now say that hailstorms of mushballs accompanied by fierce lightning actually exist on Jupiter. In fact, mushball hailstorms may occur ...

The weather forecast for Jupiter calls for clouds with a chance of lightning and "mushballs"—a slushy mix of ammonia and ...

The latest announcement from the Education Department could impact millions of borrowers with federal student loans. Jazz ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

Observations of Jupiter show that ammonia is unevenly distributed in the upper atmosphere, against expectations of uniform mixing. Scientists found evidence for a complicated but apparently real ...