During the period between the orbiting of Sputnik I and the creation of NASA, these activities-scientific research in the high atmosphere and outer space-began to be thought of as space science. The first formal use of the phrase that I recall was in the pamphlet Introduction to Outer Space prepared by members of the President's Science Advisory Committee and issued on 26 March 1958 by President Eisenhower to acquaint "all the people of America and indeed all the people of the earth" with "the opportunities which a developing space technology can provide to extend man's knowledge of the earth, the solar system, and the universe." A few months later the phrase appeared in the title of the Space Science Board, which the National Academy of Sciences established in June 1958. Use of the term spread rapidly. From the start NASA managers referred to that part of the space program devoted to scientific research by means of rockets and spacecraft as the space science program.