Legends of Tomorrow: The Atom #[nn]

In "Birth of the Atom!", scientist Palmer pushes the limits of his reducer lens in a lab filled with students, including Jean, until a sudden cave-in traps them all. With no other choice, he activates the device on himself, shrinking down in a moment of desperate courage—only to discover he's not destroyed, but transformed into a human atom. The story captures the awe and uncertainty of that first, life-altering moment, as Palmer's experiment takes a turn no one could have predicted.

In "Nucleus, Conclusion," the Atom faces a desperate gamble when the Colony captures his father and uncle, forcing him to confront the deadly alien threat inside Hawkman’s body. With Oracle’s help and the help of David Palmer, the Tiny Titan must outwit the Colony by reengineering the white dwarf matter—shifting the balance of power in a high-stakes showdown that could save his family or doom them all.

In "JLA Rebirth: The Atom," Ivy University student Ryan Choi finds himself drawn into a hidden world when he discovers that his mentor, Professor Ray Palmer, is the legendary Atom. After Palmer vanishes without a trace, he leaves behind a size-changing belt—now Ryan’s only chance to step into a role far greater than he ever imagined.