Europe's "Juice" mission set to explore Jupiter's icy ocean worlds.

The European Space Agency's Juice mission is set to launch on Thursday to explore Jupiter and its three largest moons, Ganymede, Callisto, and Europa, which are believed to have subsurface oceans that could potentially harbor life. The spacecraft will take eight years to reach Jupiter and will spend three and a half years orbiting the gas giant and conducting flybys of the moons. The mission aims to determine if the moons are habitable and to search for evidence of the building blocks of life. The spacecraft is equipped with 10 instruments to study the moons' composition, structure, and magnetic fields.