Marc Postman

Head, Community Missions Office
Marc Postman

As the head of the community missions office, Dr. Marc Postman guides the Institute’s role in providing science operations support for a number of ground- and space-based observatories that are led by independent astronomical groups in partnership with STScI. His team identifies and supports initiatives involving advanced observatory scheduling and data processing systems, data archive facilities, and astronomy outreach programs to enable the rapid dissemination of scientific knowledge to the astronomical community and the public. His team also plays a key role in pioneering advanced space telescope concepts and technology development for future missions.

Dr. Postman’s primary research interest has been the formation and evolution of structure in the universe, from galaxies to the largest superclusters. He was a member of the science investigation team for the Advanced Camera for Surveys instrument that was deployed on the Hubble Space Telescope in 2002. From 2010 – 2017, Dr. Postman lead an international team of researchers to conduct a 525-orbit survey with the Hubble telescope to study dark matter in galaxy clusters and to detect some of the most distant galaxies in the universe. He is an observational astronomer and has used a wide range of telescopes on the ground and in space, covering the electromagnetic spectrum from radio and infrared to ultraviolet and X-rays.

Dr. Postman was the Principal Investigator for a NASA concept study on the next generation space telescope known as ATLAST and is currently a team member of a follow-on NASA study for the Large Ultraviolet-Optical-near Infrared Space Telescope, called LUVOIR. LUVOIR will be able to search for and detect signs of life in the atmospheres of dozens of exoplanets and will be able to probe individual structures as small as one hundred solar masses out to z=10. Dr. Postman served on the initial science definition team for the Wide Field Infrared Survey Telescope (WFIRST) and now serves on its formulation science working group. Dr. Postman has published over 180 refereed research articles and he currently holds the title of Distinguished Astronomer.


PhD in Astronomy, Harvard University
SB in Physics, Massachusetts Institute of Technology


Science/Research Interests:

  • Evolution of massive galaxies

  • galaxy cluster distribution

  • galaxy properties

  • observational cosmology

  • the origin and evolution of large-scale structure in the universe


Research Topics: High-Redshift Galaxies; Galaxy Groups and Clusters; Galaxy Formation and Evolution; Dark Matter; Large-scale Structure


Professional Websites:

Professional Website



ORCID ID: 0000-0002-9365-7989