Surface features of Uranus' icy moon Miranda point to the existence of a once deep ocean, one that still may exist today.

Io isn’t just any moon; it’s a volcanic powerhouse orbiting Jupiter! Explore its stunning features, from raging volcanoes to dazzling auroras, and learn what makes it so different from ...

Lava lakes on Io's surface had previously been found in a few locations, such as the 127-mile-long lake Loki Patera. This study reveals that these lakes are extremely common on the moon, and the ...

The volcano-laced surface of Jupiter’s moon Io was captured in infrared by the Juno spacecraft’s Jovian Infrared Auroral Mapper (JIRAM) imager as it flew by at a distance of was about 50,000 ...

Io is the most geologically active moon in the solar system, possessing hundreds of active volcanoes. So, the existence of lava flows on the surface is not a shock.

A map of 266 hot spots on Io made using data from NASA's Juno probe, identified in data obtained from March 2017 to July 2022. The larger the symbol, the greater the 4.8 μm spectral radiance, a ...

Io is Juno’s home base for the next year and a half. Just a few days ago, on December 15, Juno initiated the first of nine flybys, some of which will bring the orbiter closer than a thousand ...

That mission also extends to Jupiter's rings and many moons. In December, Juno came within about 930 miles of Io's surface – equal the distance from New York City to Orlando, Florida.

NASA's Juno mission has captured images of Jupiter's volcanic moon Io. The craft has now mapped all of the world's volcanoes, and will help scientists determine what lies under the lava surface.

Assuming Io initially held some 20,000,000,000,000,000,000,000 (or 20 sextillion) tons of sulfur, the amount it’s lost so far leaves roughly 200 quintillion to 1.2 sextillion tons of sulfur ...

Io’s volcanoes are the only known active magma volcanoes in the solar system other than those on Earth. Io produces about 100 times more lava each year than all the volcanoes on Earth. While Earth’s ...

Juno observed Jupiter's moon Io in visible and infrared light during a May 1, 2023 flyby, yielding this composite view showing hot spots across the surface of the solar system's most volcanically ...