Astronomers at The Johns Hopkins University, the Observatoire de Paris, and other institutions have solved a nearly 30-year-old mystery surrounding Jupiter’s moon Io, showing that volcanoes there ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

The most volcanically active world in the solar system, Jupiter's moon Io, may possess a global ocean of magma underneath its surface, as well as mysteriously warm poles, a new study finds. Previous ...

A 4-billion-year-old volcano? New research finds that Io, the solar system’s most volcanically active moon, can brag just that. A recent study of Io’s sulfurous atmosphere suggests that Jupiter’s moon ...

In an image taken by Galileo in 1997, the region was barren. Now, as seen by Juno, it's very much not barren. © NASA/JPL-Caltech/SwRI/MSSS Change can be scary ...

Jupiter's volcanic moon Io as captured by the Juno spacecraft on Oct. 15, 2023. Credit: NASA / JPL-Caltech / SwRI / MSSS / Image processing by Ted Stryk On Dec. 27, 2024, NASA's Juno spacecraft ...

Scientists can say two things with certainty about Io. First, this moon of Jupiter is the most volcanic object in the known universe. Its surface is festooned with so many lava-spewing calderas that ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

NASA is unraveling Io's volcanic secrets. The space agency's Juno spacecraft has been swooping progressively closer to Jupiter's profoundly volcanic moon Io, and its observations reveal the full scope ...

The images Juno captured of the scene are absolutely amazing. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's Juno spacecraft has now paid ...

New pictures of the most volcanically active world in our solar system show it also has surface activity that resembles the accumulation and disappearance of bright snow or ice. The images from NASA’s ...

New images of Jupiter's volcano-studded moon Io, taken by the Large Binocular Telescope on Mount Graham in Arizona, offer the highest resolution of Io ever achieved with an Earth-based instrument. The ...