"Momentum" by Charles Dye is a science fiction novella written in the early 1950s. The story centers around a tense confrontation between two men, Ballard and Walton, who are working on an asteroid to install navigational equipment. The narrative explores themes of greed, suspicion, and survival in the context of space exploration. In "Momentum," Ballard realizes that his partner Walton intends to kill him after discovering the valuable rotenite nuggets. Locked outside their ship, the "Minnow", with limited oxygen, Ballard must devise a way to get back inside before he suffocates. He faces various obstacles, including equipment failures and Walton's treachery, but his determination and ingenuity lead him to use the momentum of a heavy plate to break into the ship. Ultimately, Ballard survives and takes revenge by throwing the precious rotenite nuggets away into space, thwarting Walton's plans for wealth and leaving him to face the consequences of his betrayal. (This is an automatically generated summary.)