solaGratia writes: It's the most heavily armored spacecraft ever launched to another planet. But it isn't headed into battle. Instead, it will be flying in one of the deadliest regions of the solar system: Jupiter's magnetosphere. "It's like sticking your head inside a microwave," he said. That's why the craft has to be armored; exposure to that much radiation without shielding would fry the electronics. The craft is Juno, and it's the first mission to Jupiter since Galileo was launched in 1986. It's one of the more wide-ranging studies of the giant planet.