NASA's Interface Region Imaging Spectrograph (IRIS) mission captured an X1.1-class solar flare. See time-lapse footage of the ...

NASA’s Juno spacecraft has successfully found and characterised the auroral “footprints” of Jupiter’s moon Callisto for the first time. This discovery completes ...

NASA's Juno spacecraft has detected the auroras of Jupiter's moon Callisto for the first time, completing observations of all four Galilean moons.

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NASA’s Juno spacecraft has returned new images of Jupiter after its 66th close flyby as it enters the final year of its mission. The $1 billion spacecraft completed its latest close flyby on Oct. 23, ...

The core of Jupiter, the largest planet in our solar system, has long been a source of mystery for astronomers: an object so unfathomably dense and hot that it defies comprehension. Conventional ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

"This brings us closer to understanding how not only Jupiter but the entire solar system took shape." Long before it became the giant planet we see today, Jupiter was even bigger and had a much ...