Size of Io
Volcans on Io
Galileo studied volcano's on IO. Io is the most volcanically active world in the solar system.
Discovered volcano's in 1979.
The surface is sploched with lava lakes and floodplains of liquid rock.
-It can reach 3,000 Degrees
-Its a Iron core
-Came up with name IO in the 1800s
-Its about 4.5 billion years old