Io
Io is a rocky moon that orbits the planet Jupiter. It is famous for being the most volcanically active world in our solar system.
A few interesting things
- Has hundreds of active volcanoes that spit out lava and gas
- Its surface is colorful with bright yellows, reds, and whites from sulfur and frost
- Jupiter’s gravity squeezes Io, heating its interior and powering the volcanoes
A few details
- Diameter: 3,643 km
- Distance from planet: 421,700 km
- Orbit length: 2 days