The eruption released energy six times greater than all Earth's power plants combined, exceeding 80,000 trillion watts.

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 ...

On Dec. 27, 2024, NASA's Juno spacecraft swooped by the volcanic world Io. It witnessed a giant eruption.

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

An image shows Io and the Juno spacecraft with a top down view of its south pole and the solar system's biggest record volcanic eruption ringed. | Credit: Robert Lea (created with Canva)/NASA/JPL ...

Since completing its primary science objectives in orbit of Jupiter, Juno has been conducting flybys of the Jovian moons Io, Europa, Ganymede, and Callisto. The spacecraft completed two very close ...

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 ...

Even for Jupiter's moon Io, the most volcanic body in the solar system, a recent volcanic event witnessed by NASA's Juno spacecraft takes the biscuit. The event was just one eruption centralized ...