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

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

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

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

In the years since, Hubble has gathered more than 1.6 million observations and 430 terabytes of data. The telescope has ...

The Hubble Space Telescope captured imagery of Jupiter and its Great Red Spot in 2023 and 2024. Credit: NASA, ESA, J.

In celebration of 35 years spent in orbit around Earth, the Hubble team has released a set of four new images showing the ...

A bizarre hailstorm of icy “mushballs” — slushy mixtures of ammonia and water — has been confirmed on Jupiter, where intense ...

Jupiter also has storms, like the Great Red Spot, that last for centuries ... The work was funded in part by a Solar System Observations (SSO) award from NASA (80NSSC18K1003). /Public Release. This ...

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 ...

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