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 ...

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

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

If you've been wondering how long the day on Uranus is, you probably need to get out more. But if you have, you'll be ...

Astronomers have just revealed that a day on Uranus is longer than was previously thought, at 17 hours, 14 minutes and 52 ...

The team used more than a decade’s worth of observations of Uranus’ unique aurorae taken with Hubble and refined the planet’s rotation period. This technique revealed that it completes a rotation 28 ...

Even gargantuan Jupiter, with its whirling superstorms and volatile temperatures, has a soft side. A team of researchers ...

Jupiter experiences a unique weather phenomenon where mushballs, ice-encrusted slushballs of ammonia and water, rain down like hailstones.

Explore the amazing discovery of Jupiter’s swirling dark vortices and their connection to its powerful magnetic field and ...

How can the solar wind influence Jupiter’s massive magnetic field? This is what a recent study published in Geophysical ...

An international team of astronomers using the NASA/ESA Hubble Space Telescope have made new measurements of Uranus' interior ...