• Jupiter has 318 times the mass of Earth, and over 1,300 times Earth’s volume.
  • Because Jupiter is so large, it reflects a lot of sunlight.
  • The Great Red Spot has been on Jupiter for at least 300 years.
  • Future missions to Jupiter are underway and will arrive in late 2016.
  • Jupiter is made mostly of hydrogen, with some helium, and small amounts of other elements.
  • The outer layers of the planet are gas.
  • Deeper within the planet, the intense pressure condenses the gases into a liquid.
  • Jupiter has lots of moons.
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