Interstellar Explained - Dimensions, Wormholes, Black Holes, Time Dilation, Gravity and Relativity

Miller’s Planet in Interstellar shows time in a way that seems impossible—where one hour on its surface equals seven years on Earth. But how does this extreme time dilation work, and could a planet like this really exist? According to Einstein’s General Relativity, time slows in strong gravitational fields. Miller’s Planet orbits Gargantua, a supermassive black hole, at just the right distance to experience extreme time dilation. While a real planet that close would likely be pulled in, Interste