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NSF Astronomy and Astrophysics Postdoctoral Fellowships

U.S. National Science Foundation

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 resear

Funding
Estimated total program funding: $990,000
Category
Research & Science
Status
OPEN
Deadline
10/16/2026

About

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.

Eligibility

*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: <ul> <li>U.S. institutions of higher education,</li> <li>NSF-funded centers, facilities, orinstitutes,</li> <li>U.S. non-profit organizations with research and educational missions, or</li> <li>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.</li> </ul> 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: <ul> <li>The proposer is a citizen, national, or lawful permanent resident (Green Card Holder)of the United States.</li> <li>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.</li> </ul> <span>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).</span>

Applicant types

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Notice-specific evidence check

What an applicant must verify for NSF Astronomy and Astrophysics Postdoctoral Fellowships

Applicant evidence

  • Applicant type: Other eligible applicants

Opportunity boundaries

  • Recorded funding: Estimated total program funding: $990,000
  • Recorded deadline: October 16, 2026; confirm time zone and submission system.
  • Recorded focus: Science, technology and research
Before investing in an application, connect every eligibility claim, required registration, submission component and deadline to the current official notice. Open the recorded official source →

Application checklist

How to apply for NSF Astronomy and Astrophysics Postdoctoral Fellowships

The steps below turn the recorded grant fields into a pre-submission check. They do not replace the current Notice of Funding Opportunity or its amendments.

Recorded eligibility

  • Applicant types: Grants.gov eligibility code 25.
  • Geographic scope is not structured in this record.
  • Notice summary: *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: <ul> <li>U.S. institutions of higher education,</li> <li>NSF-funded centers, facilities, orinstitutes,</li> <li>U.S. non-profit organizations with research and educational missions, or</li> <li>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.</li> </ul> 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: <ul> <li>The proposer is a citizen, national, or lawful permanent resident (Green Card Holder)of the United States.</li> <li>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.</li> </ul> <span>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).</span>

Focus areas: ST

Recorded deadline

October 15, 2026 — confirm the time zone and submission system

A missing or rolling date is not permission to assume an open application window.

  1. 1. Confirm fitMatch your applicant type, location, project scope and any cost-share or registration rule to the official notice.
  2. 2. Read the noticeCollect the current guidelines, amendments, budget rules, required attachments and submission instructions.
  3. 3. Check timingRecord the deadline time zone, internal review date and any earlier registration or portal cut-off.
  4. 4. Submit thereUse the official application route and save the confirmation or submission reference.

Official sources

Recorded source: https://www.grants.gov/xml-extract

Last directory verification: Sep 13, 2026.