Aug. 15, 2016




Many Goals Outlined in Astronomy and Astrophysics Decadal Survey Are Met, Others Delayed by Unforeseen Constraints, New Report Says


WASHINGTON – While scientists have made remarkable advancements in astronomy and astrophysics since the beginning of this decade – notably the first detection of gravitational waves and the discovery of distant Earth-like planets – unforeseen constraints have slowed progress toward reaching some of the priorities and goals outlined in the Academies’ 2010 decadal survey of these disciplines, says a new report from the National Academies of Sciences, Engineering, and Medicine. The report calls for NASA, National Science Foundation (NSF), and the U.S. Department of Energy (DOE) – the federal agencies largely responsible for funding and implementing these research activities – to maintain, and in some cases adjust, their programs in order to meet the survey’s scientific objectives.


The 2010 survey, New Worlds, New Horizons in Astronomy and Astrophysics (NWNH), identified an array of scientific and technical projects for the next decade that would trace back the formation of the first stars and galaxies, seek out black holes, reveal nearby habitable planets, and advance understanding of the fundamental physics of the universe.  The new report is an assessment of the progress made thus far by NASA, NSF, and DOE on the suite of large-, medium-, and small-scale programs given priority in the surveyincluding NASA’s Wide Field Infrared Survey Telescope (WFIRST) and the NSF/DOE’s Large Synoptic Survey Telescope (LSST).


“The survey outlined a compelling scientific program for opening new fields of inquiry through a variety of discovery areas, and we are already seeing outstanding discoveries that fulfill the vision of NWNH,” said Jacqueline N. Hewitt, professor of physics and director of the Kavli Institute for Astrophysics and Space Research at the Massachusetts Institute of Technology, and chair of the committee that carried out the study and wrote the report.  “The scientific discoveries and improvements in technology of the past five years steer us in a certain direction.  Having this opportunity to give advice on midcourse corrections to the funding agencies is very important.”


Some of the recent major scientific accomplishments that the report highlights are the first detection of gravitational waves by the NSF-funded Laser Interferometer Gravitational-Wave Observatory (LIGO); the NASA-funded Kepler satellite’s extraordinary discovery of diverse planets and planetary systems that indicate the possibility of more than a billion Earth-like planets among the exoplanets that are present around stars throughout the galaxy; and success of the Atacama Large Millimeter Array (ALMA) – a huge array of radio telescopes in the Atacama desert of Chile, recommended by the 2000 decadal survey and built by NSF and a consortium of international partners.


NASA’s WFIRST, the top-ranked large space-based mission in the 2010 survey, is designed to answer questions about dark energy, exoplanets, and general astrophysics. Since the release of the survey, the WFIRST scope and design have evolved to include a 2.4-meter telescope, larger infrared detectors, and an instrument called a coronagraph that enables directly imaging an exoplanet by blocking the light emitted by its parent star.  These changes, while scientifically compelling, could result in further increased costs and further delays for the mission, the committee said. It recommended that prior to final confirmation of the changes, NASA conduct an independent review of the project to ensure it does not crowd out investment in the rest of NASA’s astrophysics portfolio and, if necessary, de-scope the mission.


The report also finds that the driving factor in the delay or non-pursuit of some new NASA initiatives, including WFIRST, was the schedule change and increased cost associated with the James Webb Space Telescope (JWST) – a successor to the Hubble Space Telescope that is set to launch in 2018.  As a result, NASA’s WFIRST mission was delayed, and the Laser Interferometer Space Antenna (LISA) – a space-based gravitational wave detector that first took shape as collaboration between NASA and the European Space Agency (ESA) – did not go forward.  However, following the LIGO results, the report recommends that NASA restore support this decade for space-based gravitational wave research so that the U.S. is in a position to be a strong technical and scientific partner in a planned ESA-led gravitational observatory. The report notes that U.S. participation could enable the full scientific capability for the ESA-led mission as envisioned by NWNH.


The committee found that NSF made progress toward its highest priority with the initiation of the LSST – which is on schedule for 2020 and will survey the entire sky visible from its site in Chile and produce huge, unprecedented catalogs of objects and transient events. However, this and the survey’s other recommended priorities for NSF were based on a scenario in which the budget for its Division of Astronomical Sciences would double over the course of the decade. However, the division’s budget has not even kept up with inflation, and the operational costs of NSF’s powerful facilities are consuming the available budget for its research programs.   NSF and the National Science Board needs to take action to preserve the ability of the astronomical community to fully utilize NSF’s capital investments in its forefront and other facilities, the report says.


The study was sponsored by NASA, the National Science Foundation, and the U.S. Department of Energy. The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide independent, objective analysis and advice to the nation to solve complex problems and inform public policy decisions related to science, technology, and medicine. They operate under an 1863 congressional charter to the National Academy of Sciences, signed by President Lincoln. For more information, visit A roster follows.




Riya V. Anandwala, Media Relations Officer
Rebecca Ray, Media Relations Assistant
Office of News and Public Information
202-334-2138; e-mail
Follow us on Twitter @theNASEM


Copies of New Worlds New Horizons: A Midterm Assessment are available at or by calling 202-334-3313 or 1-800-624-6242. Reporters may obtain a copy from the Office of News and Public Information (contacts listed above).


#       #       #



Division on Engineering and Physical Sciences

Space Studies Board


Committee on the Review of Progress Toward the Decadal Survey Vision in

New Worlds, New Horizons in Astronomy and Astrophysics


Jacqueline N. Hewitt (chair)


MIT Kavli Institute for Astrophysics and Space Research

Department of Physics

Massachusetts Institute of Technology



Adam S. Burrows1


Department of Astrophysical Sciences

Princeton University

Princeton, N.J.


Neil Cornish


Department of Physics

Montana State University



Andrew W. Howard


University of Hawaii



Bruce Macintosh

Professor of Physics

Department of Physics

Stanford University

Stanford, Calif.


Richard F. Mushotzky


Astronomy Department

University of Maryland

College Park


Angela V. Olinto

Homer J. Livingston Professor of Astronomy and Astrophysics

Department of Astronomy and Astrophysics

University of Chicago



Steven M. Ritz

Professor of Physics and SCRIPP Associate Director

University of California

Santa Cruz


Alexey Vikhlinin

Deputy Associate Director

High Energy Astrophysics Division

Harvard-Smithsonian Center for Astrophysics

Cambridge, Mass.


David Weinberg

Henry L. Cox Professor and Chair of Astronomy

Department of Astronomy

Ohio State University



Rainer Weiss1

Professor Emeritus

Department of Physics

Massachusetts Institute of Technology



Eric M. Wilcots

Professor and Associate Dean

College of Letters and Science

University of Wisconsin



Edward L. Wright1

David Saxon Presidential Chair in Physics and Professor

Department of Physics and Astronomy

University of California

Los Angeles


A. Thomas Young2

Executive Vice President (retired)

Lockheed Martin Corp.

Onancock, Va.




David B. Lang

Study Director


1Member, National Academy of Sciences

2Member, National Academy of Engineering