A new hour-long documentary from NASA just made us even more excited to explore Pluto for the first time. The video details the dramatic history of the mission, from its launch on “America’s biggest, baddest rocket, tricked out with every conceivable booster,” to the dangers it could encounter along the way—flying through the rocky Kuiper belt is a bit like navigating a minefield—and finally, what it might find when it gets to Pluto. New moons? Rings? Ice volcanoes? “What we expect is to be surprised,” says New Horizons mission leader Alan Stern.