Jovian Infrared Auroral Mapper

The newly-discovered volcanic hotspot is larger than Earth's Lake Superior, and belches out eruptions six times the total energy of all the world's power plants.

NASA's Juno spacecraft will come closer to Jupiter's moon Io on Dec. 30 than any spacecraft has in 20 years, getting a good look at the solar system's most...

The spinning, solar-powered spacecraft will take another look of the fiery Jovian moon on July 30.

In the latest of more than 50 flybys, NASA's Juno spacecraft is slated to pass Jupiter's volcanic moon Io on Tuesday. The agency said this will be the closest flyby to date.

Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme.

Imagery from the solar-powered spacecraft provides close-ups of intriguing features on the hellish Jovian moon.

The spacecraft will make its nearest approach to the Jupiter's volcanic moon this week.

NASA's Juno spacecraft detected organic compounds and mineral salts on the surface of Jupiter's largest moon, Ganymede, hinting at a salty subsurface ocean.

The Juno mission was making its 51st flyby of the gas giant planet and its moons when it viewed the 'tortured moon' Io in stunning detail.

NASA's Juno spacecraft will fly past Jupiter's volcanic moon Io on Tuesday, May 16, and then the gas giant itself soon after. The flyby of the Jovian moon will be the closest to date, at an altitude of about 22,060 miles (35,500 kilometers). Now in the third year of its extended mission to investigate the interior of Jupiter, the solar-powered spacecraft will also explore the ring system where some of the gas…

NASA scientists said this week that they would continue to focus on Io, Jupiter's volcano-laced moon, with multiple close flybys of their Juno spacecraft.

Enormous polygon-shaped cyclones systems at Jupiter's north and south poles have baffled scientists as to how they maintain their bizarre but beautifully geometric shapes for years.

The stable, geometric arrangements of mind-bogglingly huge vortexes are still unexplained and may hint at new physics.

Io's volcanoes are powered by both the extreme tides from Jupiter and the gravitational interactions between it and Jupiter's other moons.

By staring into the hellish landscape of Jupiter's moon Io—the most volcanically active location in the solar system—Cornell astronomers have been able to study a fundamental process in planetary formation and evolution: tidal heating.

NASA's spacecraft Juno did a flyby of Jupiter's moon Io to learn more about the lunar body's volcanic activity.

The orbiter has performed 56 flybys of Jupiter and documented close encounters with three of the gas giant's four largest moons.

Planetary scientists using NASA's Juno spacecraft have detected hydrated sodium chloride, ammonium chloride and sodium/ammonium carbonate, as well as organic compounds on the surface of Jupiter's moon Ganymede.

NASA's Juno spacecraft just captured some of the most stunning and clearest images of Io yet.

Hurtling around Jupiter and its 79 moons is the Juno spacecraft, a NASA-funded satellite that sends images from the largest planet in our solar system back to researchers on Earth. These photographs have given oceanographers the raw materials for a new study published today in Nature Physics that describes the rich turbulence at Jupiter's poles and the physical forces that drive the large cyclones.