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Astronomy & Astrophysics Research Grants (AAG)

Status: Archived

Archived funding opportunity

This document has been archived. See NSF 22-624 for the latest version.

Important information for proposers

All proposals must be submitted in accordance with the requirements specified in this funding opportunity and in the NSF Proposal & Award Policies & Procedures Guide (PAPPG) that is in effect for the relevant due date to which the proposal is being submitted. It is the responsibility of the proposer to ensure that the proposal meets these requirements. Submitting a proposal prior to a specified deadline does not negate this requirement.


The Astronomy & Astrophysics Research Grants (AAG) Program provides individual investigator research grants in the following themes:

  • Planetary Astronomy (PLA) - Theoretical and observational studies of the detailed structure and composition of the surfaces, interiors, and atmospheres of the planets and satellites in the Solar System; the nature of small bodies (asteroids and comets); the inter-planetary medium; and the origin and development of the Solar System.  Laboratory investigations of relevance to Solar System phenomena are included in this theme. 

  • Stellar Astronomy and Astrophysics (SAA) - Theoretical and observational studies of the structure and activity of the Sun and other stars; the physical properties and composition of all types of single and multiple stars; extra-solar system planet formation and detection; star formation and stellar evolution; stellar nucleosynthesis; and the properties of atoms and molecules of relevance to stellar astronomy.

  • Galactic Astronomy (GAL) - Theoretical and observational studies on the composition, structure, and evolution of the Milky Way galaxy and nearby galaxies. Research may focus on the stellar populations in these galaxies; the characteristics of star clusters; the interstellar medium; and the properties of atomic and molecular constituents of the interstellar medium. Relevant laboratory investigations are included. 

  • Extragalactic Astronomy and Cosmology (EXC) - Theoretical and observational studies of the more distant Universe.  Research topics include galaxy formation, evolution, and interaction; active galaxies; quasars; large-scale structure; and all areas of cosmology. 

Program contacts

Vernon L. Pankonin
Program Director, Planetary Astronomy
vpankoni@nsf.gov (703) 292-4902
Nigel A. Sharp
Program Director, Extragalactic Astronomy & Cosmology
nsharp@nsf.gov (703) 292-4905 MPS/PHY
Michael Briley
Program Director, Stellar Astronomy & Astrophysics
mbriley@nsf.gov (703) 292-4901
Randy L. Phelps
Program Director, Galactic Astronomy
rphelps@nsf.gov (703) 292-4910 OD/OIA

Awards made through this program

Browse projects funded by this program
Map of recent awards made through this program