Rosemary Theresa Coogan (born 1991) is an astrophysicist and UK astronaut from Northern Ireland.

[5] She worked as a simulation support engineer to develop machine learning models to detect anomalies from robotic sensors.

[6] She found that dense cluster environment increases the star formation efficiency, which she attributed to the high number of mergers, interactions and the active galactic nuclei.

[6] Toward the end of her doctorate, she attempted to inform future observations by constructing mock images of survey fields for the Square Kilometre Array.

[1] Coogan completed ESA's Basic Training curriculum at the European Astronaut Centre, and graduated on the 22nd of April 2024 alongside her classmates from "The Hoppers"[9] group.