When he returns to Endurance he finds out that 23 years had passed since he left for Miller's planet. Cooper catches up on a cache of 23 years worth of video messages from the earth. According to many fans of the film, this scene was one of the most touching scenes in cinema.

Cooper begins slingshot around Gargantua. 

At the same time on earth, Murph and Professor Brand works with NASA. Professor Brand confesses that his gravity equation could not be solved, leaving no possibility to save people on Earth. Even if Murph feels devastated and betrayed by this statement, she remains determined to solve Brand's equation.