NSF Astronomy and Astrophysics Postdoctoral Fellowships

Federal funding opportunity 22-621 from U.S. National Science Foundation.

Apply on Grants.gov →Application closes October 15, 2026

Posted: July 27, 2022
Closes: October 15, 2026
Award floor: $110,000
Program funding: $990,000
Expected awards: 9
Cost sharing: No
Instrument: Grant
Assistance listing: 47.049
Category: Science and Technology and other Research and Development
Archives: November 14, 2027

Program funding history

Awards made under Assistance Listing 47.049 across FY2024–FY2026, from public federal spending records.

FY2024 obligated: $1.6B
FY2025 obligated: $1.7B
FY2026 (to date) obligated: $392.2M
Awards in window: 8,323

Top recipients: Associated Universities Inc, Association of Universities for Research in Astronomy, Inc., California Institute of Technology, Florida State University, Cornell University

Source: USAspending.gov · refreshed July 2026

Synopsis

NSF Astronomy and Astrophysics Postdoctoral Fellowships provide an opportunity for highly qualified, recent doctoral scientists to carry out an integrated program of independent research and education. Fellows may engage in observational, instrumental, theoretical, laboratory or archival data research in any area of astronomy or astrophysics, in combination with a coherent educational plan for the duration of the fellowship. The program supports researchers for a period of up to three years with fellowships that may be taken to eligible host institutions of their choice. The program is intended to recognize early-career investigators of significant potential and to provide them with experience in research and education that will establish them in positions of distinction and leadership in the scientific community.

Who can apply

Others (see text field entitled "Additional Information on Eligibility" for clarification)

*Who May Submit Proposals: Proposals may only be submitted by the following: - NSF Astronomy and Astrophysics Postdoctoral Fellowships are awards to individuals; proposals are submitted directly by the fellowship candidate to NSF. Each proposer must identify one or more scientific mentor(s) and host institution(s) at the time of proposal submission. Prospective Fellows may propose to hold the fellowship at:

U.S. institutions of higher education,
NSF-funded centers, facilities, orinstitutes,
U.S. non-profit organizations with research and educational missions, or
International sites that are operated by U.S. organizations eligible for NSF funding, such as the Atacama Large Millimeter/submillimeter Array, Cerro Tololo InterAmerican Observatory, or Gemini South.

National centers, facilities, sites, or institutes funded by other federal agencies, such as NASA or the U.S. Department of Energy, are ineligible as host institutions for the NSF AAPF Program. *Who May Serve as PI: Fellowships are awarded to individuals. The fellowship candidate submits their proposal directly to NSF. An individual is eligible to submit a proposal to the NSF AAPF Program if all of the following criteria are met:

The proposer is a citizen, national, or lawful permanent resident (Green Card Holder)of the United States.
The proposer has earned the doctoral degree in an appropriate scientific field within five (5) years prior to the proposal submission deadline or will complete the doctoral degree by 1 October following the proposal deadline.

By signing and submitting the proposal, the fellowship candidate is certifying that they meet the eligibility criteria specified in this program solicitation. Willful provision of false information in this request and its supporting documents or in reports required under an ensuing award is a criminal offense (U.S. Code, Title 18, Section 1001).

How to apply

Applications go through the official government listing. Grants Radar links you straight to the source.

View on Grants.gov Full announcement

Agency contact: U.S. National Science Foundation · grantsgovsupport@nsf.gov · 703-292-4203

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