[snip] Uranus has 29 confirmed moons. Only one spacecraft has ever visited the planet -- and that was in 1986 for just a few hours. Yet in the last two years alone we have discovered a brand new moon, found hidden oceans beneath multiple moons, and revealed that the dark sides of its largest moons are on completely the wrong hemisphere. In this video we break down every weird moon of Uranus -- from a world with the tallest cliff in the entire solar system, to a moon with a single mysterious bright ring sitting alone on an otherwise pitch...