Jack of Hearts (Jack Hart) is a fictional character, a superhero in the Marvel Comics
universe. He first appeared in Deadly Hands of Kung Fu #22 (March, 1976). Jack Hart
was born in New Haven, Connecticut. He is the son of Philip Hart, a scientist who
created an energy source called "zero fluid", and Marie, an alien humanoid woman of
the Contraxian race. After being exposed to a vat of zero fluid, Jack underwent a
mutagenic change and gained the ability to project concussive energy from his body.
After gaining these powers, Jack began his mission of vengeance against the corporation
that killed his father. This led to Jack fighting other superheroes such as the Sons of
the Tiger and the Hulk.
-Ability to survive unaided in space
-Sensitive brain that senses motion
-Increased intelligence and memory