The NASA Hubble Fellowship Program by the Space Telescope Science Institute funds early-career astrophysicists to conduct independent, innovative research in any area of NASA Astrophysics.
Funder: Space Telescope Science Institute
Due Dates: October 28, 2026 (Application) | November 4, 2026 (Letters of reference)
Funding Amounts: ~$85,000/year salary plus benefits, research, and relocation funds; up to 3 years; ~24 awards annually
Summary: Supports outstanding early-career astrophysicists in independent research advancing NASA Astrophysics at a U.S. host institution.
Key Information: PhD must be awarded on or after January 1, 2023; open to all nationalities; up to two new fellows per institution per year.
The NASA Hubble Fellowship Program (NHFP) is one of the most prestigious postdoctoral fellowships in astrophysics, administered by the Space Telescope Science Institute (STScI) for NASA. The program enables exceptionally promising early-career researchers to pursue independent, innovative research in any area of NASA Astrophysics—including theoretical, observational, experimental, or instrument development work. Fellows may choose their U.S. host institution (subject to eligibility and institutional quotas) and join a vibrant community advancing the frontiers of astrophysics. The program honors the legacy of the previous Hubble, Einstein, and Sagan Fellowships; each fellow is designated as an Einstein, Hubble, or Sagan Fellow, depending on the alignment of their research with NASA’s core science questions.