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NASA's Cassini spacecraft made its final three flybys of Enceladus, the little moon that stunned scientists with the revelation it harbors a global ocean under its icy shell, active geysers of water-ice feeding one of Saturn's rings and the first tantalizing signs of hydrothermal activity beyond Earth. All these discoveries have vaulted Enceladus to one of the top future destinations for exploration and the search for signs of potential life beyond Earth.
NASA's New Horizons is the first spacecraft to explore Pluto up close. Use the resources below to make the most out of this historic event - humankind's first close up view of this cold, unexplored world in our solar system.