Warren Moos graduated from Brown University in 1957 and received a PhD in physics from the University of Michigan in 1962. From 1961 to 1963, he was a postdoctoral researcher at Stanford University, becoming an acting assistant professor in 1963. He joined the Department of Physics and Astronomy at Johns Hopkins in 1964, where he has served as director of the Center for Astrophysical Sciences and as chair of the Department of Physics and Astronomy. In this oral history, Moos discusses major projects and programs during his career at Johns Hopkins University. This oral history is part of the Hopkins Retrospective oral histories series.

Leon Fleisher was born July 23, 1928 in San Francisco, California and began studying piano at the age of four. A noted child prodigy, Fleisher became a student of Artur Schnabel at the age of nine, after which Fleisher's career in piano began in earnest. In 1964, he began to suffer from focal dystonia, a condition that cost him the use of his right hand until corrected in the mid-1990s. Fleisher is a fellow of the American Academy of Arts and Sciences, a recepient of the Kennedy Center Honors Award (2007), and the Andrew W. Mellon Chair at the Peabody Institute of Johns Hopkins. In this oral history, Fleisher describes his early career and mentors, his experiences with the Peabody Institute and Baltimore, and the history of the Peabody Institute, including its formal association with Johns Hopkins in 1978. This oral history is part of the Mame Warren oral histories series.

Since 1986, Raymond Villard has been the News Director for the Space Telescope Science Institute. His earlier work experience includes producing planetarium programs for the Maryland Science Center and serving as Assistant Editor of Astronomy magazine. He received a B.S. in Communication Arts from the University of Albany, SUNY and an M.S. in Science Communication from Boston University. In this oral history, Villard discusses his work at the Space Telescope Science Institute and the Hubble Space Telescope. This oral history is part of the Hopkins Retrospective oral histories series.

Kishin Moorjani was born in India. After working in France for a brief period of time, he became a theoretical physicist at Johns Hopkins University's Applied Physics Laboratory and worked there for more than thirty years. In this interview, Moorjani discusses the growth and development of the Applied Physics Laboratory. This oral history is part of the Mame Warren oral histories series.

Research Professor Paul Feldman has been affiliated with the Department of Physics and Astronomy at Johns Hopkins University since 1967. He is principal investigator of a NASA-supported sounding rocket program and has been responsible for over three dozen sounding rocket launches. Feldman received his PhD in physics from Columbia University in 1964. In this oral history, he discusses how his interest in astronomy developed and some of the highlights of his professional career. This oral history is part of the Hopkins Retrospective oral histories series.