Take a captivating journey with an animated tour of Jupiter’s volcanic moon ... and a glimpse into its internal structure. Known as the most volcanically active body in the solar system ...

Water abundance also has important implications for the gas giant's meteorology (including how wind currents flow on Jupiter) and internal structure. "The probe did amazing science, but its data ...

Io circles Jupiter every 42.5 hours, pushed and pulled by massive gravitational forces in an elliptical orbit that constantly reshapes the moon. Through a phenomenon known as tidal flexing, huge ...