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 mixing. Scientists found evidence for a complicated but apparently real ...

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

A massive solar windstorm in 2017 compressed Jupiter's magnetosphere "like a giant squash ball," a new study reports.

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

The theme thus far around these first two exact aspects ... just three days after the final Jupiter-Saturn square. Does this kick off the next round of aggressive rate cuts – perhaps until ...

NASA launched the Pioneer 11 mission into the outer solar system. Pioneer 11 would become the first spacecraft to fly by Saturn, and it flew by Jupiter and the asteroid belt along the way. It launched ...

"We've studied Jupiter, Saturn and Uranus in increasing detail over the past decade. These giant planets are not as resistant to the sun's influence as we thought — they're vulnerable ...

Imagine a Slushee™ composed of ammonia and water encased in a hard shell of water ice. Now picture these ice-encrusted slushballs, dubbed "mushballs ...

Scientists say a vast region of unexpectedly high temperatures in Jupiter's upper atmosphere was caused by a massive wave of solar wind.