NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

For nine years, a spacecraft known as the Juno orbiter has divided its time between observing the gas giant of Jupiter and studying its moons, including Io. And on its third flyby of the celestial ...

In December 2023 and February 2024, Juno passed within 930 miles (1,500 kilometers) of Io’s surface, collecting high-precision data. By measuring subtle changes in the spacecraft’s velocity ...

Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme. Scientists with NASA's Juno mission have discovered a ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature ...

During Juno's latest flyby of Io, on Dec. 27, 2024, the spacecraft's Jovian Infrared Auroral Mapper (JIRAM) instrument detected a massive new infrared hot spot in the moon's southern hemisphere ...

NASA's Juno spacecraft detected the most intense volcanic eruption ever recorded on Jupiter's moon Io. During a flyby on December 27, 2024, Juno was approximately 74,400 kilometers from Io's ...

New findings from NASA's Juno probe provide a fuller picture of how widespread the lava lakes are on Jupiter's moon Io and include first-time insights into the volcanic processes at work there.

A blistering volcanic event was detected on Io, dwarfing anything seen before in the solar system. NASA’s Juno spacecraft, equipped with JIRAM, captured an unprecedented surge of infrared energy ...