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 planets offer exciting views in April. Jupiter is a brilliant object in the evening sky, although the observing window narrows as the Sun sets later each day. Mars is past its best, but remains ...

Weather on Jupiter may have some surprising similarities to Earth phenomena, but some things it does defy easy explanation.

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 ...

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

On April 2, facing almost due west at dusk you'll see a slender crescent moon sitting about 5 degrees to the right of Jupiter. Saturn is now a morning object, emerging from the glare of the rising ...

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

Research published by scientists in England found a 2017 solar event compressed Jupiter's magnetic field, setting off aurora at the poles and heating in the upper atmosphere that spread across the ...

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