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

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

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

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

NASA's Perseverance rover finds hundreds of mysterious spheres on Mars, raising exciting questions about the Red Planet's history and possible signs of life.

Uranus Findings Can Aid the Study of Exoplanets Now more than 30 years into its mission, the Hubble Space Telescope has ...

Jupiter is the heavyweight champion of the planets, but Neptune is no slouch either. According to NASA, Neptune is about 17 t ...

The reason this worked so well is thanks to Hubble’s consistent, long-term observations. Over more than a decade, the space ...

On Uranus, a day just lasts far longer. More precise rotational time observations of the gas giant should enable scientists to plan visits to investigate it. Unlike on Mars and Earth, savage ...

There is no other moon quite like our own in the entire solar system. The Moon is unique in a lot of ways, some of which are ...

"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

A new way to measure the length of Uranus’s day could also help determine the rotation rates of other celestial objects—including exoplanets ...