Io

Characteristics

• Io is about 4.5 billion years old• Io is the fifth moon from Jupiter (422,000 km) • Io takes 1.77 Earth days to orbit• Radius of 1,131.7 miles • Slight elliptical shape

Origin

• Io is named for the daughter of Inachus, whom Zeus raped. He turned Io into a cow to hide the incident from his wife.

Special Attributes

• Molten Sulfur Gives the Moon Color• Believed to Have Metallic Core• Mountains as High as 9 Km

Physical Attributes

• Volcanic Activity• Mostly sulfur dioxide • Orbit cuts across

Jupiter’s magnetic lines

http://www.space.com/14979-volcanoes-io-video-1st-map-volcanic-jupiter-moon.html