JUPITER'S MOONS

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BACKGROUND

• Jupiter has 67 moons, but there' four main moons
• Io, Europa, Ganymede, and Castillo
• The most interesting moon is Europa
• Its atmospheric conditions/composition are similar to Earths
• It's very likely if there were water it would be under its frozen surface

EUROPA

• Europa is mainly silicate rocks like those on Earth and the Moon
• The thick ice layer gives us the possibility of water or life under it
• Since Europa is the closes the an atmosphere and water
• It has the highest chance to have life
• Europa has a very smooth surface.

IO

• Io — 3,660 km (2,274 mi)
• Temperatures on Io minimum 90K Average Temperature: 110K Average Maximum 130K
• Io has been studied by spacecraft from Pioneer 10 and 11 in 1973 and 1974
• Orbit of Io around Jupiter (time) — 42 hours

GANYMEDE

• Ganymede — 5,262.4 km (3,270 miles)
• Orbit of Ganymede around Jupiter (time) — 172 hours
• Temperatures on Average Minimum: 70K Average Temperature: 110K Average Maximum: 152K

CALLISTO

• Callisto — 4,820.6 km (2,995.4 mi)
• Orbit of Callisto around Jupiter (time) — 17 days
• Temperatures Average Minimum: 75-85K Average Temperature: 123-145K Average Maximum: 160-170K