Why do gas giants like Jupiter emit radiation?

The level of radiation at Jupiter was ten times more powerful than Pioneer's designers had predicted, leading to fears that the probe would not survive; however, with a few minor glitches, it managed to pass through the radiation belts, saved in large part by the fact that Jupiter's magnetosphere had "wobbled" slightly upward at that point, moving away from the spacecraft. read more

Like the Earth, Jupiter has a magnetosphere that is a region where radiation from the sun, and volcanic emissions from Jupiter's moons and ring interact with the planet's magnetic field. This field is the strongest and largest in the solar system, about 18,000 times stronger than the Earth's. read more

Like the Earth, Jupiter has a magnetosphere that is a region where radiation from the sun, and volcanic emissions from Jupiter's moons and ring interact with the planet's magnetic field. This field is the strongest and largest in the solar system, about 18,000 times stronger than the Earth's. read more