A newly discovered jet stream in Jupiter's atmosphere creates wind shears that far exceed any seen on Earth.

A frozen mix of water and table salt created in a lab on Earth could explain the red streaks crossing the surface of Jupiter's moon Europa.

Oxygen in an ocean on Jupiter's moon Europa may be similar to oxygen in Earth's oceans. "Our research puts this process into the realm of the possible."

New research validates a nearly 40-year-old prediction that helium rain is possible inside planets such as Jupiter and Saturn.

A new model could reveal the origins of a hypothesized cryovolcanic eruption on Jupiter's moon Europa and other icy bodies in the solar system.

The atmosphere on Jupiter's moon Io is a witches' brew made from the sulfurous burps of more than 400 volcanoes. Now scientists know how it got that way.

Jupiter's moons are pretty hot, at least hotter than they should be, given how far away they are from the sun. A new study explains why that may be.

The collision between a newborn planet and a younger Jupiter could explain some suprising readings from NASA's Juno mission.