By Alton Parrish.   In less than a week, the spacecraft Juno will arrive at Jupiter, the culmination of a five-year, billion-dollar journey. It’s mission: to peer deep inside the gas giant and unravel its origin and evolution. One of the biggest mysteries surrounding Jupiter is how it generates its powerful magnetic field, the … Continue reading Oceans of Liquid Metallic Hydrogen Create Jupiter’s Powerful Magnetic Field