New observations of the most volcanic world in our solar system solve a mystery that began with Voyager 1

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.

​ 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. Read More Breaking News, Latest News and Videos | CNN