Addresses several methods used in the regulatory process with respect to water quality cleanup levels. Information and perspectives on the adequacy of these methods are provided by representatives from water…

During 1988, the National Research Council’s Space Science Board reorganized itself to more effectively address NASA’s advisory needs. The Board’s scope was broadened: it was renamed the Space Studies Board…

Comets and asteroids are in some sense the fossils of the solar system. They have avoided most of the drastic physical processing that shaped the planets and thus represent more…

Captures messages from a workshop that brought together research managers from government, industry, and academia to review and discuss the mechanisms that have been proposed or used to assess the…

Sea mines have caused damage to naval forces, slowed or stopped naval actions and commercial shipping, and forced the alteration of strategic and tactical plans. This report assesses the Department…

NASA’s long-range plans include possible human exploratory missions to the moon and Mars within the next quarter century. Such missions beyond low Earth orbit will expose crews to transient radiation…

Part of the Physics in a New Era series of assessments of the various branches of the field, Elementary-Particle Physics reviews progress in the field over the past 10 years…