The National Science Foundation (NSF) is offering Postdoctoral Research Fellowships (PRF) through its Office of Polar Programs, aimed at early career scientists, including social scientists, to foster interdisciplinary research and broaden access to polar research resources. Applicants must be U.S. citizens, nationals, or permanent residents, and should submit proposals that include a project plan aligned with OPP's research goals, while also identifying a scientific mentor and a U.S. host organization. The fellowship program is designed to integrate new investigators into polar research and support their professional development, with a total estimated funding of $3 million available for this initiative. Proposals are due by February 3, 2025, and interested candidates can find more information at the NSF's publication link or contact grants.gov support at grantsgovsupport@nsf.gov for assistance.