Brooks served on the U.S. House Committee on Armed Services from 1947 to 1958, and he then became the first chairman of the newly formed House Space Committee (later Science and Astronautics), reportedly because his seniority entitled him to a more important post on Armed Services than he was considered capable of handling. He was reappointed in 1961. It was Brooks who proposed a civilian, rather than military, space program. On May 4, 1961, his committee sent a memo to then Vice President Lyndon B. Johnson on this subject. U.S. President John F. Kennedy's speech which prompted the development of the Apollo program was delivered a few weeks later.