Eisenhower had expected the country to absorb the Sputnik launch as one more Cold War headline, not to panic. The 16-week political and institutional crisis that followed — between the launch of Sputnik 1 on 4 October 1957 and the successful launch of Explorer 1 on 31 January 1958 — was overdetermined, larger than the technical reality of the launch warranted, and ultimately more consequential than the launch itself.
The political response was led by Congress, not the executive. Lyndon Johnson opened Senate Armed Services Committee hearings on November 25, 1957, and the Senate Special Committee on Space and Astronautics was established in February 1958 under his chairmanship. The Eisenhower administration was on the defensive for most of this period and tried to position itself as the responsible adult in a room of panicking legislators, but Eisenhower’s argument that the United States was ahead in most relevant technologies was not politically effective.
The cultural response is the part with the longest legacy. The NDEA was the largest single federal investment in education since the 1862 Morrill Land-Grant Acts, and it produced a generation of scientists, engineers, and computer programmers trained in the post-Sputnik years. The phrase “Sputnik generation” is shorthand for the fact that the crisis reshaped American science education, federal research funding — the country’s relationship to its technical workforce for two generations.
For the rest of the Sputnik article and the space race overview.