Early-career scientists in astronomy, physics, and related fields can apply for the 2027 NASA Hubble Fellowship Program. The fellowship supports postdoctoral researchers carrying out independent research connected to NASA Astrophysics.
The programme is open internationally and allows successful fellows to conduct research at an eligible U.S. host institution.
About the NASA Hubble Fellowship Program 2027
The NASA Hubble Fellowship Program is part of the NASA Astrophysics fellowship programme and supports researchers whose work contributes to the understanding of the universe.
Research may be theoretical, observational, or instrumental and for 2027, NASA and the Space Telescope Science Institute anticipate offering up to 24 fellowships.
A fellowship appointment can last for up to three years, beginning with a one-year appointment and potentially continuing for two additional years, subject to satisfactory performance and available funding.
Who Should Consider Applying?
The programme is aimed at researchers who have completed, or will complete, the requirements for a doctoral degree in astronomy, physics or a related field.
Applicants of any nationality can apply, and to be eligible for the 2027 programme, applicants must have completed all doctoral degree requirements on or after January 1, 2023.
The fellowship is intended for postdoctoral research, so applicants should carefully review the programme’s detailed requirements and research areas before submitting an application.
What Fellows Receive
The fellowship provides:
- Postdoctoral research support.
- The opportunity to carry out independent NASA Astrophysics research.
- A fellowship appointment of up to three years.
- The opportunity to work at a U.S. host institution of the fellow’s choice, subject to the programme’s host-institution rules.
- Access to a broader scientific research community connected with NASA Astrophysics.
Fellows are appointed as an Einstein, Hubble, or Sagan Fellow, depending on the area of their research.
NASA Hubble Fellowship Program 2027 Application Process
Applicants should begin by reviewing the official NASA Hubble Fellowship Program Announcement of Opportunity and application instructions.
The basic process is:
- Confirm that you meet the doctoral degree and field requirements.
- Develop an independent research proposal relevant to NASA Astrophysics.
- Select an eligible U.S. host institution.
- Review the official application requirements and programme policies.
- Complete and submit the online application before the deadline.
- Make sure your referees submit their reference letters by the separate reference-letter deadline.
The application portal opened on September 8, 2026.
NASA Hubble Fellowship Program 2027 Deadlines
Application deadline: October 28, 2026, at 7 p.m. Eastern Time.
Reference letter deadline: November 4, 2026.
Offers are expected in early February 2027, with new fellowship appointments expected to begin around September 1, 2027.
NASA Hubble Fellowship Program 2027 – Official Website
Frequently Asked Questions
Can international researchers apply?
Yes. The NASA Hubble Fellowship Program accepts applicants of any nationality.
What fields are eligible?
The programme is intended for astronomy, physics, and related disciplines connected to NASA Astrophysics.
How long does the fellowship last?
The appointment can last up to three years, beginning with an initial one-year appointment and possible annual renewals.
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