Observations from NASA’s Juno spacecraft reveal that Jupiter’s strong magnetic field and the unique properties of its plasma ...

One big finding is that Jupiter’s atmosphere extends 1,860 miles down from the cloud tops – much larger than expected – and at that depth, the planet’s composition is quite different.

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

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

A recent study found that Jupiter was once twice the size that it is now, ... those dimensions would make the gas giant big enough to fit 2,000 Earths inside of it – if it were hollow.

Jupiter’s immense size–about 1,000 Earths could fit inside of it–and its swirling and jiggly Great Red Spot typically get most of the attention. Now, the planet’s northern and southern ...

LITTLETON, Colo. — I've never been so close to something that is going so far away. The Jupiter-bound Juno spacecraft is entering a series of vital tests before its planned liftoff aboard an ...

A file image of Jupiter, the largest planet in the solar system. Scientists have recently analyzed lightening on the gas planet. martin_adams2000/Getty ...

S cott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

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 ...