In Depth | Ganymede – NASA Solar System Exploration
Because Ganymede is close to Jupiter, its magnetic field is embedded in, or lies within, Jupiter’s magnetic field. When Jupiter’s magnetic field changes, the auroras on Ganymede also …
Jupiter - NASA Solar System Exploration
Sep 3, 2025 · If Jupiter was a hollow shell, 1,000 Earths could fit inside. But the "King of Planets" is no lumbering giant — Jupiter has the shortest day in the solar system, taking about 9.9 …
In Depth | Callisto – NASA Solar System Exploration
This page showcases our resources for those interested in learning more about Jupiter. It includes activities that can be done at home as well as videos, animations, stories, and articles.
In Depth | Io – NASA Solar System Exploration
As Jupiter rotates, it takes its magnetic field around with it, sweeping past Io and stripping off about 1 ton (1,000 kilograms) of Io's material every second. This material becomes ionized in …
In Depth | Europa – NASA Solar System Exploration
Jupiter’s equator (and the orbital plane of its moons) is tilted with respect to Jupiter’s orbital path around the Sun by only 3 degrees (Earth is tilted 23.5 degrees).
Planet Compare - NASA Solar System Exploration
Oct 21, 2025 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | Titan – NASA Solar System Exploration
Saturn takes about 29 Earth years to orbit the Sun (a Saturnian year), and Saturn’s axis of rotation is tilted like Earth’s, resulting in seasons. But Saturn’s longer year produces seasons …
In Depth | Themisto – NASA Solar System Exploration
It travels in the same direction as Jupiter's rotation (a prograde orbit). At a distance of about 4.5 million miles (7.3 million kilometers) from Jupiter, Themisto takes about 130 Earth days to …
In Depth | Earth's Moon – NASA Solar System Exploration
The Moon is rotating at the same rate that it revolves around Earth (called synchronous rotation), so the same hemisphere faces Earth all the time. Some people call the far side – the …
In Depth | Himalia – NASA Solar System Exploration
A name ending in "a" was chosen for this moon in keeping with the International Astronomical Union's policy for designating Jupiter's outer moons which have prograde orbits (orbiting in the …