Dr. Fischer’s research centers on understanding the processes that are involved in the morphology transformation that occurs when massive, gas-rich, disk galaxies collide and merge to form gas-poor elliptical galaxies. How does the system rid itself of its interstellar medium, thereby shutting off the processes of star-formation for lack of fuel? What role does accretion onto the central black hole play in this transformation, particularly during the stage when disruption of the stable disks have led to gaseous infall into the nuclear regions of the system, thereby obscuring the central activity? This research currently primarily utilizes data obtained with the Herschel Space Observatory, a mission that only recently expended the cryogens needed to keep it operational. As the Herschel Optical System Scientist and as a member of the Herschel Science Team, she worked to ensure that the mission was a success. She is now also interested in the development of future far-infrared / submillimeter space missions to continue this research.