In response to the query by Jonathan Young ’69 (Inbox, June issue) about Princeton’s services for the deaf, two ASL (American Sign Language) interpreters provided support for physics major Colin Lualdi ’17 [7] in my 2014 freshman seminar, “From the Earth to the Moon.” The signers took 20-minute turns during the weekly 3-hour meetings, as the pace was intense. Together with slides that detailed the dreams, history, science, and mathematics of spaceflight, two-way communication was quite successful. It helped that Colin was engaged and engaging, augmenting a learning process for all of the students and me.