CNN —The European Space Agency has sent a spacecraft to explore Jupiter and three of its largest and most intriguing moons. The Jupiter Icy Moons Explorer mission, or Juice, launched Friday at 8:14 a.m. Toward the end of the mission, Juice will focus solely on orbiting Ganymede, making it the first spacecraft ever to orbit a moon in the outer solar system. The Juice mission was designed to unravel what takes place as Jupiter interacts with its moons, including auroras, hot spots, radio emissions and waves of charged particles. Given the eventual distance between the spacecraft and Earth, it will take 45 minutes to send a one-way signal to Juice.

---