The NASA Hubble Fellowship Program (NHFP) supports promising postdoctoral scientists to pursue independent research which contributes to NASA Astrophysics, using theory, observation, experimentation, or instrument development.

Once selected, fellows are assigned to one of three sub-categories corresponding to NASA’s “big questions”:

  1. How Does the Universe Work? – Einstein Fellows
  2. How Did We Get Here? – Hubble Fellows
  3. Are We Alone? – Sagan Fellows

NHFP fellowships are tenable at U.S. host institutions of the fellow’s choice, subject to a maximum of two new fellows per host institution per year, and no more than five fellows at any single host institution, except for short periods of overlap. The duration of the fellowship is up to three years: an initial one-year appointment, and two annual renewals, contingent on satisfactory performance and availability of NASA funds.


The NHFP is open to English-speaking applicants of any nationality who have earned their doctoral degrees in astronomy, physics, or related disciplines on or after January 1, 2020, or who will receive their degree before September 2024.

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