The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
New Worlds, New Horizons in Astronomy and Astrophysics
FIGURE 6.3 NASA Science Mission Directorate/Astrophysics Science Division mission cost over time, including future projections, 1990 to 2020. Red diamonds correspond to the year of launch; green diamonds indicate a project start (though not necessarily launched within the decade). Flagship missions are those that are not cost constrained at selection, whereas intermediate and Explorer-class missions are so designated by their cost.
National Science Foundation
The NSF Division of Astronomical Sciences (NSF-AST) supports versatile facility suites in gamma-ray astronomy, optical and infrared astronomy, millimeter and submillimeter astronomy, radio astronomy, and solar astronomy (Box 6.2). The ground-based optical and infrared (OIR) telescopes operate from 0.3 to 20 micrometers and include facilities for both night-time astronomy and for day-time solar studies. The ground-based radio telescopes operate at submillimeter to centimeter wavelengths. For all of these facilities the observing time is competed, typically through bi-annual or tri-annual proposal processes. About $250 million of the roughly $300 million total astronomy and astrophysics expenditures flows through NSF-AST. The remainder is associated with NSF’s Division of Physics (NSF-PHY; including particle and nuclear astrophysics), Division of Atmospheric and Geospace Sciences (NSF-AGS), and Office of Polar Programs (NSF-OPP).