In Interstellar, what is the name of the first planet the crew explores?

In *Interstellar*, the first planet the crew explores is Miller’s planet.

Cooper, Amelia Brand, and Doyle reach it after traveling through the wormhole near Saturn aboard the Endurance mission. The planet orbits Gargantua, a massive black hole, and its extreme gravity creates severe time dilation: roughly one hour on the surface corresponds to seven years elsewhere.

The world appears covered by a shallow global ocean, but the landscape is dominated by enormous tidal waves. The crew discovers wreckage from astronaut Miller’s earlier expedition, indicating that the apparent delay in her data was caused by the planet’s relativistic time effects.

Miller’s planet is often confused with Mann’s planet or Edmunds’ planet, both later destinations in the mission. Earth is the endangered home world from which Cooper departs, not one of the planets investigated through the wormhole. The sequence establishes the film’s central connection between gravity, time, and human survival.