Hexacorallia is an addition to Eero Saarinen’s TWA Flight Center at John F. Kennedy Airport in New York on the scale of JetBlue’s newly opened terminal on the same site. Beginning with a series of transformations on a sphere, a catalogue of primitive forms was generated at varying scales and proportions, which was then combined to create a “field object,” emphasizing formal intersections and the voids created. Named after its resemblance to the subclass of corals exhibiting six-fold symmetry, hexacorallia uses its large central spaces with smaller auxiliary protrusions to support program and create intersections between the forms. The interior spaces become a series of connections and arrival spaces pulling passengers through the terminal, with ancillary program and circulation located within the form’s poché. The extending, limb-like nature of the forms allows for a variety of intersection conditions and the potential for further additions.