The National Physical Science Consortium is a partnership between government agencies and laboratories, industry, and higher education. NPSC's goal is to increase the number of American citizens with graduate degrees in the physical sciences and related engineering fields, emphasizing recruitment of a diverse applicant pool. Though the fields supported can vary annually depending on employer needs, in general NPSC covers the following: Astronomy, Chemistry, Computer Science, Geology, Materials Science, Mathematical Sciences, Physics, and their subdisciplines, and related engineering fields: Chemical, Computer, Electrical, Environmental, Mechanical. NPSC welcomes applications from any qualified U.S. citizen who has the ability to pursue graduate work at an NPSC member institution.
http://www.npsc.org/Applicants/Applicants/fellowshipinfo.html