an independent agency of the U.S. government, established by the National Science Foundation Act of 1950. Its mission is to promote the progress of science; to advance national health, prosperity, and welfare; and to secure the defense of the nation. Activities that fall within its purview include the initiation and support of scientific and engineering research; exchange of information among scientists; technological development; distribution of federal monies to universities and other research organizations; and political advocacy for national policies and research in science and engineering.