Io orbits Jupiter at a distance of 421,700 km (262,000 mi) from Jupiter's center and 350,000 km (217,000 mi) from its cloudtops. It is the innermost of the Galilean satellites of Jupiter, its orbit lying between those of Thebe and Europa. Including Jupiter's inner satellites, Io is the fifth moon out from Jupiter.

Sep 16, 2009 · This basemap of Jupiter’s moon Io was produced by combining the best images from both the Voyager 1 and Galileo Missions. The movie shows two speeded-up rotations of Io (a single rotation really takes 1.77 days), and begins with a view of the Jupiter-facing hemisphere.

Jan 29, 2025 · Use this tool to compare Io to Earth, and other worlds. Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine." Most of what we know about Io comes from the Galileo spacecraft, which made a detailed study of the Jupiter system.

Compute and visualize the position of Jupiter's Galilean Moons in real time or at any given time in the past or in the future.

Nov 16, 2023 · 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.

To present the most information in a single view of Jupiter's moon, Io, a global color mosaic, derived from Galileo color images, was superposed on a higher resolution image mosaic, derived from merging the best resolution images from spacecrafts Galileo and Voyager 1.

Mar 23, 2008 · Io is the most volcanically active body in the solar system, with volcanoes that erupt massive volumes of silicate lava, sulphur and sulphur dioxide, constantly changing Io’s appearance. This new basemap of Jupiter’s moon Io was produced by combining the best images of the Voyager 1 and Galileo missions.

Nov 20, 2023 · The best-yet map of active volcanoes on Jupiter’s moon Io hints at a hidden magma ocean—and more

Mar 13, 2012 · Map of the geology of Io, the innermost moon of Jupiter, based on remote sensing data.

Oct 2, 1992 · Jupiter's Moon, Io, In Ultraviolet Light This is a Hubble Space Telescope image of the geologically active trailing hemisphere of the Jovian moon lo. The ultraviolet light image as taken with the European Space Agency's Faint Object Camera on March 15, 1992, when lo was 414 million miles from Earth.