Jupiter's magnetosphere is the biggest object in the solar system. Its magnetic field is 20 times stronger than Earth's.
The planet has a swirling storm twice the width of Earth that's raged for at least the last 150 years called the Great Red Spot.
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The temperature near the planet's core may be about 43,000 degrees Fahrenheit — hotter than the surface of the sun.
Jupiter has the most moons of any planet in the solar system at 67 confirmed. Galileo found the first four in 1610.