On March 2, 1979, a paper in Science ruminated on Io’s strange orbit. Because of the positions and orbits of neighboring moons, Io’s orbit is elliptical rather than circular.

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits Jupiter once about every 42 hours, according to the Planetary Society.

cott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

On March 8, 1979, NASA's Voyager 1 spacecraft discovered active volcanoes on Jupiter's moon Io. Before Voyager 1 flew by Io, scientists believed the moon to be a dead world much like Earth's moon.

Jupiter’s moon Io, the most volcanically active body in the solar system, is littered with hundreds of erupting volcanoes. High-resolution images now reveal several dozen lava lakes, researchers ...

Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

NASA's Juno mission revealed that Jupiter's moon, Io, the most volcanic body in our solar system, doesn't possess a global magma ocean. Instead, separate magma chambers fuel its over 400 active ...

Io does not have a shallow global magma ocean beneath its surface, counter to previous claims, suggests a paper published in Nature. Observations from NASA's Juno spacecraft, combined with all ...

Juno's observations reveal remarkable changes to Io's surface. In just a few years, the moon has undergone significant transformations. This unnamed volcano is accompanied by dark lava flows, while ...

New infrared images showcase "fire-breathing" lakes all across the surface of Jupiter's volcanic moon Io. When you purchase through links on our site, we may earn an affiliate commission.